Bài 4: Toán tử và biểu thức, hàm toán học trong Java

**xvietsao** · 08-15-2013, 07:00 AM

Mã nguồn PHP:


[color=#000000]
code[/color]

<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote></blockquote></div>
</div>
</div>
public class baitap1 {
public static void main(string[]args){
int a, b ,c;
a=9;
b=17;
c=15;
system.out.println("a/2="+a/2);
system.out.println("b/2="+b/2);
system.out.println("c/2="+c/2);
system.out.println("a%3="+a%3);
system.out.println("b%3="+b%3);
system.out.println("c%3="+c%3);
system.out.println("
");
a++;
b++;
c++;
system.out.println("gia tri moi cua a la :"+a);
system.out.println("gia tri moi cua b la:"+b);
system.out.println("gia tri moi cua c la:"+c);
}
}

**bong88vn123** · 08-20-2013, 07:00 AM

Gửi bởi thuy_ja

nộp bài ^^
bai3: loai hoai..du kieu moi xong phan tinh goc...hieu thuan toán nhưng chưa hiểu cái thư viện math để tính cos :-(

bạn tham khảo bài của mấy bạn trên đấy! có nhiều bạn đã làm đúng, bên trang 1

**24hpro** · 08-20-2013, 07:00 AM

sao mình chạy mãi mà vẫn lỗi chỗ tính góc vậy, mọi người xem hộ mình xem sai chỗ nào với

<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700][[/color][color=#0000bb]code[/color][color=#007700]]public class [/color][color=#0000bb]bai4 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {        [/color][color=#ff8000]// todo code application logic here        [/color][color=#0000bb]int a [/color][color=#007700]= [/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b [/color][color=#007700]= [/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]5[/color][color=#007700];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phần nguyên khi chia các số cho 2 lần lượt là: " [/color][color=#007700]+ [/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]2 [/color][color=#007700]+ [/color][color=#dd0000]", "                [/color][color=#007700]+ [/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2 [/color][color=#007700]+ [/color][color=#dd0000]", " [/color][color=#007700]+ [/color][color=#0000bb]c[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700]);        [/color][color=#0000bb]a[/color][color=#007700]++;        [/color][color=#0000bb]b[/color][color=#007700]++;        [/color][color=#0000bb]c[/color][color=#007700]++;        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị mới sau khi tăng 3 biến lên 1: "                [/color][color=#007700]+ [/color][color=#0000bb]a [/color][color=#007700]+ [/color][color=#dd0000]", " [/color][color=#007700]+ [/color][color=#0000bb]b [/color][color=#007700]+ [/color][color=#dd0000]", " [/color][color=#007700]+ [/color][color=#0000bb]c[/color][color=#007700]);        [/color][color=#0000bb]a[/color][color=#007700]--;        [/color][color=#0000bb]b[/color][color=#007700]--;        [/color][color=#0000bb]c[/color][color=#007700]--;        [/color][color=#0000bb]float x[/color][color=#007700];        [/color][color=#0000bb]x [/color][color=#007700]= ((float)([/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]c [/color][color=#007700]- [/color][color=#0000bb]b[/color][color=#007700]))/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"kết quả phép tính khi chưa ép kiểu là " [/color][color=#007700]+ [/color][color=#0000bb]x[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"sau khi ép kiểu: " [/color][color=#007700]+ (int)[/color][color=#0000bb]x[/color][color=#007700]);        [/color][color=#0000bb]float p [/color][color=#007700]= ((float)([/color][color=#0000bb]a [/color][color=#007700]+ [/color][color=#0000bb]b [/color][color=#007700]+ [/color][color=#0000bb]c[/color][color=#007700]))/[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]double s[/color][color=#007700];        [/color][color=#0000bb]s [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]p[/color][color=#007700]*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]));        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"diện tích tam giác là " [/color][color=#007700]+ [/color][color=#0000bb]s[/color][color=#007700]);        [/color][color=#0000bb]double a [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]acos[/color][color=#007700](([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a [/color][color=#007700]+ [/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b [/color][color=#007700]- [/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]));        [/color][color=#0000bb]double b [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]acos[/color][color=#007700](([/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b [/color][color=#007700]+ [/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c [/color][color=#007700]- [/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]));        [/color][color=#0000bb]double c [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]acos[/color][color=#007700](([/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c [/color][color=#007700]+ [/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a [/color][color=#007700]- [/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]));        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"các góc của tam giác là "                [/color][color=#007700]+ [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]todegrees[/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700]) + [/color][color=#dd0000]" độ,\t" [/color][color=#007700]+ [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]todegrees[/color][color=#007700]([/color][color=#0000bb]b[/color][color=#007700]) +[/color][color=#dd0000]" độ,\t" [/color][color=#007700]+[/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]todegrees[/color][color=#007700]([/color][color=#0000bb]c[/color][color=#007700]) + [/color][color=#dd0000]" độ"[/color][color=#007700]);    }}[/[/color][color=#0000bb]code[/color][color=#007700]][/color]

</blockquote></div>
</div>
</div>

**linkipro1** · 09-01-2013, 07:00 AM

<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package structuredemo[/color][color=#007700]; public class [/color][color=#0000bb]unit1 [/color][color=#007700]{public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string args [/color][color=#007700][]){ [/color][color=#0000bb]int a[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700];[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit1: (a,b,c)/2= "[/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700]));[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit1: (a,b,c)%3= "[/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700]));[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit1: going up 1:" [/color][color=#007700]+(++[/color][color=#0000bb]a[/color][color=#007700])+ [/color][color=#dd0000]", " [/color][color=#007700]+(++[/color][color=#0000bb]b[/color][color=#007700])+ [/color][color=#dd0000]", " [/color][color=#007700]+(++[/color][color=#0000bb]c[/color][color=#007700])); [/color][color=#0000bb]unit out [/color][color=#007700]= new [/color][color=#0000bb]unit[/color][color=#007700]();[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]unit2[/color][color=#007700]([/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]5[/color][color=#007700]);[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]unit3[/color][color=#007700]([/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]5[/color][color=#007700], [/color][color=#0000bb]6[/color][color=#007700]); }[/color][color=#ff8000]//end the main.[/color][color=#007700]}[/color][color=#ff8000]// end the class dohomework. [/color][color=#007700]class [/color][color=#0000bb]unit [/color][color=#007700]{ public static [/color][color=#0000bb]void unit2[/color][color=#007700]([/color][color=#0000bb]float a[/color][color=#007700], [/color][color=#0000bb]float b[/color][color=#007700], [/color][color=#0000bb]float c[/color][color=#007700]) {[/color][color=#0000bb]float x[/color][color=#007700]; [/color][color=#ff8000]// 2ax+b=8c.[/color][color=#007700]if([/color][color=#0000bb]a[/color][color=#007700]!=[/color][color=#0000bb]0[/color][color=#007700]) {[/color][color=#0000bb]x [/color][color=#007700]= ([/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit2: x="[/color][color=#007700]+((int) [/color][color=#0000bb]x [/color][color=#007700]) );}else [/color][color=#ff8000]// a==0;[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"vo nghiem chang han!"[/color][color=#007700]);}[/color][color=#ff8000]//end the method unit2.. [/color][color=#007700]public static [/color][color=#0000bb]void unit3[/color][color=#007700]([/color][color=#0000bb]float a[/color][color=#007700], [/color][color=#0000bb]float b[/color][color=#007700], [/color][color=#0000bb]float c[/color][color=#007700]){ [/color][color=#0000bb]float p [/color][color=#007700]= ([/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700];[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit3: dientich= "[/color][color=#007700]+([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]( [/color][color=#0000bb]p[/color][color=#007700]*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]) ) ) );[/color][color=#0000bb]float a[/color][color=#007700]=([/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]);[/color][color=#0000bb]float b[/color][color=#007700]=([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]);[/color][color=#0000bb]float c[/color][color=#007700]=([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit3: ketqua="[/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700])+ [/color][color=#dd0000]", "[/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700])+ [/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]));}[/color][color=#ff8000]//end the method unit3.[/color][color=#007700]}[/color][color=#ff8000]//end the class unit2.[/color]

</blockquote></div>
</div>
</div>

Gửi bởi hohoaikiet

<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package structuredemo[/color][color=#007700]; public class [/color][color=#0000bb]unit1 [/color][color=#007700]{public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string args [/color][color=#007700][]){ [/color][color=#0000bb]int a[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700];[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit1: (a,b,c)/2= "[/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700]));[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit1: (a,b,c)%3= "[/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700]));[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit1: going up 1:" [/color][color=#007700]+(++[/color][color=#0000bb]a[/color][color=#007700])+ [/color][color=#dd0000]", " [/color][color=#007700]+(++[/color][color=#0000bb]b[/color][color=#007700])+ [/color][color=#dd0000]", " [/color][color=#007700]+(++[/color][color=#0000bb]c[/color][color=#007700])); [/color][color=#0000bb]unit out [/color][color=#007700]= new [/color][color=#0000bb]unit[/color][color=#007700]();[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]unit2[/color][color=#007700]([/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]5[/color][color=#007700]);[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]unit3[/color][color=#007700]([/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]5[/color][color=#007700], [/color][color=#0000bb]6[/color][color=#007700]); }[/color][color=#ff8000]//end the main.[/color][color=#007700]}[/color][color=#ff8000]// end the class dohomework. [/color][color=#007700]class [/color][color=#0000bb]unit [/color][color=#007700]{ public static [/color][color=#0000bb]void unit2[/color][color=#007700]([/color][color=#0000bb]float a[/color][color=#007700], [/color][color=#0000bb]float b[/color][color=#007700], [/color][color=#0000bb]float c[/color][color=#007700]) {[/color][color=#0000bb]float x[/color][color=#007700]; [/color][color=#ff8000]// 2ax+b=8c.[/color][color=#007700]if([/color][color=#0000bb]a[/color][color=#007700]!=[/color][color=#0000bb]0[/color][color=#007700]) {[/color][color=#0000bb]x [/color][color=#007700]= ([/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit2: x="[/color][color=#007700]+((int) [/color][color=#0000bb]x [/color][color=#007700]) );}else [/color][color=#ff8000]// a==0;[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"vo nghiem chang han!"[/color][color=#007700]);}[/color][color=#ff8000]//end the method unit2.. [/color][color=#007700]public static [/color][color=#0000bb]void unit3[/color][color=#007700]([/color][color=#0000bb]float a[/color][color=#007700], [/color][color=#0000bb]float b[/color][color=#007700], [/color][color=#0000bb]float c[/color][color=#007700]){ [/color][color=#0000bb]float p [/color][color=#007700]= ([/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700];[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit3: dientich= "[/color][color=#007700]+([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]( [/color][color=#0000bb]p[/color][color=#007700]*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]) ) ) );[/color][color=#0000bb]float a[/color][color=#007700]=([/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]);[/color][color=#0000bb]float b[/color][color=#007700]=([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]);[/color][color=#0000bb]float c[/color][color=#007700]=([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]); [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"unit3: ketqua="[/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700])+ [/color][color=#dd0000]", "[/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700])+ [/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]));}[/color][color=#ff8000]//end the method unit3.[/color][color=#007700]}[/color][color=#ff8000]//end the class unit2.[/color]

</blockquote></div>
</div>
</div>

trót nghịch với mấy đoạn code. hề hề! cũng vui.

**xebabysportvn123** · 09-07-2013, 07:00 AM

bai 1
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã:

public static void main(string[]args){
        int a,b,c;
        a=3;
        b=4;
        c=5;
        system.out.println("phan nguyen khi chia "+a+"/2=" +(a/2));
        system.out.println("phan nguyen khi chia "+b+"/2=" +(b/2));
        system.out.println("phan nguyen khi chia "+c+"/2=" +(c/2));
        system.out.println("phan du khi chia "+a+"/3=" +(a%3));
        system.out.println("phan du khi chia "+b+"/3=" +(b%3));
        system.out.println("phan du khi chia "+c+"/3=" +(c%3));
        ++a;
        ++b;
        ++c;
        system.out.println("gia tri a "+a);
        system.out.println("gia tri b "+b);
        system.out.println("gia tri c "+c);
    }

</blockquote></div>
</div>
</div>

**ngiensinek** · 09-07-2013, 07:00 AM

bai 2
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã:

public static void main(string[]args){
        float a,b,c,x;
        a=3;
        b=4;
        c=5;
        x=(8*c-b)/(2*a);
        system.out.println("float x="+x);
        system.out.println("int x="+(int)x);
 
    }

</blockquote></div>
</div>
</div>

**hachihachi0807** · 09-07-2013, 07:00 AM

bai 03
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã:

    public static void main(string[]args){
        float a,b,c,s;
        a=3;
        b=4;
        c=5;
        float p;
        p=(a+b+c)/2;
        s=(float) math.sqrt(p*(p-a)*(p-b)*(p-c));
        system.out.println("dien tich ="+s);
        float a,b,c;
        a=(float)math.asin((2*s)/(b*c));
        b=(float)math.asin((2*s)/(a*c));
        c=(float)math.asin((2*s)/(a*b));
        system.out.println("goc a="+(float)(a*180)/math.pi);
        system.out.println("goc b="+(float)(b*180)/math.pi);
        system.out.println("goc c="+(float)(c*180)/math.pi);
    }

</blockquote></div>
</div>
</div>

**thuhongnt** · 09-07-2013, 07:00 AM

câu 1:
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]so1 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string [/color][color=#007700][] [/color][color=#0000bb]agrs[/color][color=#007700]) {        [/color][color=#0000bb]int a [/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700];        [/color][color=#0000bb]int b[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700];        [/color][color=#0000bb]int c[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700];        [/color][color=#0000bb]int d[/color][color=#007700]= (int) [/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]int e[/color][color=#007700]= (int) [/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]int f[/color][color=#007700]= (int) [/color][color=#0000bb]c[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]int du1[/color][color=#007700]= [/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]int du2[/color][color=#007700]= [/color][color=#0000bb]b[/color][color=#007700]%[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]int du3[/color][color=#007700]= [/color][color=#0000bb]c[/color][color=#007700]%[/color][color=#0000bb]2[/color][color=#007700];[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phân nguyên phép chia a/2: "[/color][color=#007700]+[/color][color=#0000bb]d[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phân nguyên phép chia b/2: "[/color][color=#007700]+[/color][color=#0000bb]e[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phân nguyên phép chia c/2: "[/color][color=#007700]+[/color][color=#0000bb]f[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phân dư phép chia a/2: "[/color][color=#007700]+[/color][color=#0000bb]du1[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phân dư phép chia b/2: "[/color][color=#007700]+[/color][color=#0000bb]du2[/color][color=#007700]);[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phân dư phép chia c/2: "[/color][color=#007700]+[/color][color=#0000bb]du3[/color][color=#007700]);[/color][color=#0000bb]a[/color][color=#007700]++;[/color][color=#0000bb]b[/color][color=#007700]++;[/color][color=#0000bb]c[/color][color=#007700]++;[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"a = "[/color][color=#007700]+[/color][color=#0000bb]a [/color][color=#007700]+[/color][color=#dd0000]" b= "[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#dd0000]" c= "[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]);    }}[/color]

</blockquote></div>
</div>
</div>
câu 2:
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]so2 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]agrs[/color][color=#007700]) {         [/color][color=#0000bb]float a [/color][color=#007700]= [/color][color=#0000bb]3[/color][color=#007700];        [/color][color=#0000bb]float b [/color][color=#007700]= [/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]float c [/color][color=#007700]= [/color][color=#0000bb]5[/color][color=#007700];        [/color][color=#0000bb]float x [/color][color=#007700]= ([/color][color=#0000bb]8 [/color][color=#007700]* [/color][color=#0000bb]c [/color][color=#007700]- [/color][color=#0000bb]b[/color][color=#007700]) / ([/color][color=#0000bb]2 [/color][color=#007700]* [/color][color=#0000bb]a[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"nghiêm của pt 2ax+b=8c là: x= " [/color][color=#007700]+ [/color][color=#0000bb]x[/color][color=#007700]);         [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"x được ép kiểu về số nguyên : x = " [/color][color=#007700]+ (int) [/color][color=#0000bb]x[/color][color=#007700]);    } }[/color]

</blockquote></div>
</div>
</div>
câu 3:
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]so3 [/color][color=#007700]{public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][][/color][color=#0000bb]agrs[/color][color=#007700]) {    [/color][color=#0000bb]float a[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700];    [/color][color=#0000bb]float b[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700];    [/color][color=#0000bb]float c[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700];    [/color][color=#0000bb]float p[/color][color=#007700]=([/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700];    [/color][color=#0000bb]double s[/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]p[/color][color=#007700]*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]));    [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"dien tich tam giac la s= "[/color][color=#007700]+[/color][color=#0000bb]s[/color][color=#007700]);    [/color][color=#0000bb]double a[/color][color=#007700]=[/color][color=#0000bb]180[/color][color=#007700]*([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]asin[/color][color=#007700]([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]s[/color][color=#007700]/([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700])))/[/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]pi[/color][color=#007700];    [/color][color=#0000bb]double b[/color][color=#007700]=[/color][color=#0000bb]180[/color][color=#007700]*([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]asin[/color][color=#007700]([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]s[/color][color=#007700]/([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700])))/[/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]pi[/color][color=#007700];    [/color][color=#0000bb]double c[/color][color=#007700]=[/color][color=#0000bb]180[/color][color=#007700]*([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]asin[/color][color=#007700]([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]s[/color][color=#007700]/([/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700])))/[/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]pi[/color][color=#007700];[/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"3 goc tam giac la :" [/color][color=#007700]+[/color][color=#0000bb]a [/color][color=#007700]+[/color][color=#dd0000]" "[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#dd0000]" "[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]);   }}[/color]

</blockquote></div>
</div>
</div>

**trananhanh1** · 09-09-2013, 07:00 AM

nộp bài:

bài 1:
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package bai1[/color][color=#007700]; public class [/color][color=#0000bb]bai1 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {        [/color][color=#0000bb]int a[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phần nguyên khi chia cho 2 của a, b, c lần lượt là: " [/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]", "  [/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700]));        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phần dư khi chia cho 3 của a, b, c lần lượt là: " [/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700]));        [/color][color=#0000bb]a[/color][color=#007700]++; [/color][color=#0000bb]b[/color][color=#007700]++; [/color][color=#0000bb]c[/color][color=#007700]++;               [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị a, b, c sau khi tăng: " [/color][color=#007700]+[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#dd0000]", "[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#dd0000]", " [/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]);    }}[/color]

</blockquote></div>
</div>
</div>

bài 2
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package bai2[/color][color=#007700];public class [/color][color=#0000bb]bai2 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {               [/color][color=#0000bb]float a [/color][color=#007700]=[/color][color=#0000bb]2[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]x[/color][color=#007700];        [/color][color=#0000bb]int ex[/color][color=#007700];        [/color][color=#0000bb]x [/color][color=#007700]= ([/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]c [/color][color=#007700]- [/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị x là: "[/color][color=#007700]+[/color][color=#0000bb]x[/color][color=#007700]);        [/color][color=#0000bb]ex [/color][color=#007700]=  (int) [/color][color=#0000bb]x[/color][color=#007700];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị x sau khi ép kiểu: "[/color][color=#007700]+[/color][color=#0000bb]ex[/color][color=#007700]);    }}[/color]

</blockquote></div>
</div>
</div>

bài 3: tính góc ko biết làm tới:d
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package bai3[/color][color=#007700];public class [/color][color=#0000bb]bai3 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {         [/color][color=#0000bb]float a [/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b [/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c [/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700], [/color][color=#0000bb]s[/color][color=#007700], [/color][color=#0000bb]cv[/color][color=#007700], [/color][color=#0000bb]p[/color][color=#007700];        [/color][color=#0000bb]p [/color][color=#007700]= ([/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]s [/color][color=#007700]= (float) [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]p[/color][color=#007700]*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]));        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"diện tích tam giác là: "[/color][color=#007700]+[/color][color=#0000bb]s[/color][color=#007700]);    } }[/color]

</blockquote></div>
</div>
</div>

**hongnhan** · 09-09-2013, 07:00 AM

Gửi bởi huongta

nộp bài:

bài 1:
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package bai1[/color][color=#007700]; public class [/color][color=#0000bb]bai1 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {        [/color][color=#0000bb]int a[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phần nguyên khi chia cho 2 của a, b, c lần lượt là: " [/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700])+[/color][color=#dd0000]", "  [/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700]));        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"phần dư khi chia cho 3 của a, b, c lần lượt là: " [/color][color=#007700]+([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]b[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700])+[/color][color=#dd0000]", " [/color][color=#007700]+([/color][color=#0000bb]c[/color][color=#007700]%[/color][color=#0000bb]3[/color][color=#007700]));        [/color][color=#0000bb]a[/color][color=#007700]++; [/color][color=#0000bb]b[/color][color=#007700]++; [/color][color=#0000bb]c[/color][color=#007700]++;             [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị a, b, c sau khi tăng: " [/color][color=#007700]+[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#dd0000]", "[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#dd0000]", " [/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]);    }}[/color]

</blockquote></div>
</div>
</div>

bài 2
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package bai2[/color][color=#007700];public class [/color][color=#0000bb]bai2 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {             [/color][color=#0000bb]float a [/color][color=#007700]=[/color][color=#0000bb]2[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]x[/color][color=#007700];        [/color][color=#0000bb]int ex[/color][color=#007700];        [/color][color=#0000bb]x [/color][color=#007700]= ([/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]c [/color][color=#007700]- [/color][color=#0000bb]b[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị x là: "[/color][color=#007700]+[/color][color=#0000bb]x[/color][color=#007700]);        [/color][color=#0000bb]ex [/color][color=#007700]=  (int) [/color][color=#0000bb]x[/color][color=#007700];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giá trị x sau khi ép kiểu: "[/color][color=#007700]+[/color][color=#0000bb]ex[/color][color=#007700]);    }}[/color]

</blockquote></div>
</div>
</div>

bài 3: tính góc ko biết làm tới:d
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>spoiler (move your mouse to the spoiler area to reveal the content)</noscript>

show spoiler
hide spoiler

</div>
<div class="quotecontent">
<div class="bbcm_spoiler_noscript"><blockquote>

Mã nguồn PHP:


[color=#000000]
package bai3[/color][color=#007700];public class [/color][color=#0000bb]bai3 [/color][color=#007700]{    public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]args[/color][color=#007700]) {         [/color][color=#0000bb]float a [/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700], [/color][color=#0000bb]b [/color][color=#007700]=[/color][color=#0000bb]4[/color][color=#007700], [/color][color=#0000bb]c [/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700], [/color][color=#0000bb]s[/color][color=#007700], [/color][color=#0000bb]cv[/color][color=#007700], [/color][color=#0000bb]p[/color][color=#007700];        [/color][color=#0000bb]p [/color][color=#007700]= ([/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]s [/color][color=#007700]= (float) [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]p[/color][color=#007700]*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]a[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]b[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c[/color][color=#007700]));        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"diện tích tam giác là: "[/color][color=#007700]+[/color][color=#0000bb]s[/color][color=#007700]);    } }[/color]

</blockquote></div>
</div>
</div>

goc a=arcsin(2*s/(a*b)) ( = radian)

Chủ đề: Bài 4: Toán tử và biểu thức, hàm toán học trong Java

Công cụ Chủ đề

Tìm Chủ đề

Quyền viết bài

Khu dự án Diamond Alnata Plus giáp trung tâm

Máy rung vùng kín: Công dụng, lợi ich và những điều cần biết

Sử dụng máy massage bụng các cô có vấn đề gì không?

Diamond Centery cực kì nhanh chóng giá hợp lý

Dịch vụ cho thuê xe nâng người tại Dĩ An từ 6m đến 43m