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

**ngoc.hong734** · 07-05-2014, 07:00 AM

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Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]demo [/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]b[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700];[/color][color=#0000bb]a [/color][color=#007700]= [/color][color=#0000bb]9[/color][color=#007700];[/color][color=#0000bb]b [/color][color=#007700]= [/color][color=#0000bb]7[/color][color=#007700]; [/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]15[/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]"phan nguyen cua a, b, c khi chia cho 2 lan luoc la:"[/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]"phan du cua a, b, c khi chia cho 3 lan luoc la:"[/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]"gia tri cua ba bien a, b, c khi tang len 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]

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Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]demo [/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]b[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700], [/color][color=#0000bb]x[/color][color=#007700];[/color][color=#0000bb]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]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]"x:"[/color][color=#007700]+(int)[/color][color=#0000bb]x[/color][color=#007700]);}}[/color]

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Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]demo [/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]b[/color][color=#007700], [/color][color=#0000bb]c[/color][color=#007700], [/color][color=#0000bb]s[/color][color=#007700];[/color][color=#0000bb]a [/color][color=#007700]= [/color][color=#0000bb]4[/color][color=#007700];[/color][color=#0000bb]b [/color][color=#007700]= [/color][color=#0000bb]6[/color][color=#007700];[/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]8[/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]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]"dien tich tam giac:"[/color][color=#007700]+[/color][color=#0000bb]s[/color][color=#007700]);}}[/color]

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**anhld** · 08-07-2014, 07:00 AM

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Mã nguồn PHP:


[color=#000000]
package baitapvenha[/color][color=#007700];[/color][color=#ff8000]/*** bài 1: các biến a, b, c là các số nguyên. gán giá* trị cho các biến. tìm phần nguyên khi chia các số này cho 2, tìm phần* dư khi chia các số này cho 3, in kết quả ra màn hình. tăng giá trị a,* b, c mỗi biến lên 1, in giá trị 3 số ra màn hình.*/[/color][color=#007700]public class [/color][color=#0000bb]btvnbuoi4 [/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]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"===> bai 1:"[/color][color=#007700]+ [/color][color=#dd0000]"
 các biến a, b, c là các số nguyên. gán giá trị cho các biến. "[/color][color=#007700]+ [/color][color=#dd0000]"
 tìm phần nguyên khi chia các số này cho 2, tìm phần dư khi chia các số này cho 3, in kết quả ra màn hình."[/color][color=#007700]+ [/color][color=#dd0000]"
 tăng giá trị a, b, c mỗi biến lên 1, in giá trị 3 số ra màn hình."[/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]"
==> bai lam <=="[/color][color=#007700]);[/color][color=#0000bb]int a[/color][color=#007700]=[/color][color=#0000bb]5[/color][color=#007700],[/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]10[/color][color=#007700],[/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]15[/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]"phan nguyen cua ("[/color][color=#007700]+[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#dd0000]":2) = "[/color][color=#007700]+([/color][color=#0000bb]a[/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]"phan nguyen cua ("[/color][color=#007700]+[/color][color=#0000bb]b[/color][color=#007700]+[/color][color=#dd0000]":2) = "[/color][color=#007700]+([/color][color=#0000bb]b[/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]"phan nguyen cua ("[/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]+[/color][color=#dd0000]":2) = "[/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]"phan du: "[/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]"("[/color][color=#007700]+[/color][color=#0000bb]a[/color][color=#007700]+[/color][color=#dd0000]"%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=#dd0000]"%3)="[/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=#dd0000]"%3)="[/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]"gia tri moi: (a,b,c) = ("[/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=#dd0000]")"[/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]"
===> bai 2:"[/color][color=#007700]+ [/color][color=#dd0000]"
 giải phương trình 2ax+b = 8c với a, b, c là số thực – được gán giá trị trong chương trình, x cũng là số thực, là giá trị cần tìm."[/color][color=#007700]+ [/color][color=#dd0000]"
 sau khi tính x in kết quả ra màn hình, ép kiểu x về số nguyên, in kết quả ép kiểu của x ra màn hình!"[/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]"
==> bai lam <=="[/color][color=#007700]);[/color][color=#0000bb]float _a[/color][color=#007700]=[/color][color=#0000bb]5.5f[/color][color=#007700],[/color][color=#0000bb]_b[/color][color=#007700]=[/color][color=#0000bb]6f[/color][color=#007700],[/color][color=#0000bb]_c[/color][color=#007700]=[/color][color=#0000bb]10f[/color][color=#007700];[/color][color=#0000bb]float 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]"phuong trinh co dang: f(x) = (2ax+b=8c) 
 ==> "[/color][color=#007700]+([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]_a[/color][color=#007700])+[/color][color=#dd0000]"x + "[/color][color=#007700]+[/color][color=#0000bb]_b[/color][color=#007700]+[/color][color=#dd0000]" = "[/color][color=#007700]+([/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]_c[/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]"giai phuong trinh ta co: x = ("[/color][color=#007700]+[/color][color=#0000bb]8[/color][color=#007700]*[/color][color=#0000bb]_c[/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]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700])+[/color][color=#dd0000]") = "[/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]"phan nguyen cua x = "[/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]"
===> bai 3:"[/color][color=#007700]+ [/color][color=#dd0000]"
 cho a, b, c là độ dài 3 cạnh tam giác, a, b, c được gán giá trị trong chương trình. "[/color][color=#007700]+ [/color][color=#dd0000]"
 viết chương trình tính diện tích s của tam giác, in kết quả ra màn hình. tìm số đo 3 góc của tam giác đó, in kết quả ra màn hình."[/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]"
==> bai lam <=="[/color][color=#007700]);[/color][color=#0000bb]double c1[/color][color=#007700]=[/color][color=#0000bb]20[/color][color=#007700],[/color][color=#0000bb]c2[/color][color=#007700]=[/color][color=#0000bb]10[/color][color=#007700], [/color][color=#0000bb]c3[/color][color=#007700]=[/color][color=#0000bb]25[/color][color=#007700];[/color][color=#0000bb]double p[/color][color=#007700]=([/color][color=#0000bb]c1[/color][color=#007700]+[/color][color=#0000bb]c2[/color][color=#007700]+[/color][color=#0000bb]c3[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700],[/color][color=#0000bb]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]c1[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c2[/color][color=#007700])*([/color][color=#0000bb]p[/color][color=#007700]-[/color][color=#0000bb]c3[/color][color=#007700]));[/color][color=#0000bb]double _cosc1 [/color][color=#007700]= ([/color][color=#0000bb]c2[/color][color=#007700]*[/color][color=#0000bb]c2[/color][color=#007700]+[/color][color=#0000bb]c3[/color][color=#007700]*[/color][color=#0000bb]c3[/color][color=#007700]-[/color][color=#0000bb]c1[/color][color=#007700]*[/color][color=#0000bb]c1[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]c2[/color][color=#007700]*[/color][color=#0000bb]c3[/color][color=#007700]);[/color][color=#0000bb]double _cosc2 [/color][color=#007700]= ([/color][color=#0000bb]c1[/color][color=#007700]*[/color][color=#0000bb]c1[/color][color=#007700]+[/color][color=#0000bb]c3[/color][color=#007700]*[/color][color=#0000bb]c3[/color][color=#007700]-[/color][color=#0000bb]c2[/color][color=#007700]*[/color][color=#0000bb]c2[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]c1[/color][color=#007700]*[/color][color=#0000bb]c3[/color][color=#007700]);[/color][color=#0000bb]double _cosc3 [/color][color=#007700]= ([/color][color=#0000bb]c2[/color][color=#007700]*[/color][color=#0000bb]c2[/color][color=#007700]+[/color][color=#0000bb]c1[/color][color=#007700]*[/color][color=#0000bb]c1[/color][color=#007700]-[/color][color=#0000bb]c3[/color][color=#007700]*[/color][color=#0000bb]c3[/color][color=#007700])/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]c2[/color][color=#007700]*[/color][color=#0000bb]c1[/color][color=#007700]);[/color][color=#0000bb]double c1 [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]todegrees[/color][color=#007700]([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]acos[/color][color=#007700]([/color][color=#0000bb]_cosc1[/color][color=#007700]));[/color][color=#0000bb]double c2 [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]todegrees[/color][color=#007700]([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]acos[/color][color=#007700]([/color][color=#0000bb]_cosc2[/color][color=#007700]));[/color][color=#0000bb]double c3 [/color][color=#007700]= [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]todegrees[/color][color=#007700]([/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]acos[/color][color=#007700]([/color][color=#0000bb]_cosc3[/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 cua tam giac abc("[/color][color=#007700]+[/color][color=#0000bb]c1[/color][color=#007700]+[/color][color=#dd0000]","[/color][color=#007700]+[/color][color=#0000bb]c2[/color][color=#007700]+[/color][color=#dd0000]","[/color][color=#007700]+[/color][color=#0000bb]c3[/color][color=#007700]+[/color][color=#dd0000]") = "[/color][color=#007700]+[/color][color=#0000bb]s[/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]"so do 3 canh cua tam giac abc("[/color][color=#007700]+[/color][color=#0000bb]c1[/color][color=#007700]+[/color][color=#dd0000]","[/color][color=#007700]+[/color][color=#0000bb]c2[/color][color=#007700]+[/color][color=#dd0000]","[/color][color=#007700]+[/color][color=#0000bb]c3[/color][color=#007700]+[/color][color=#dd0000]") la ("[/color][color=#007700]+[/color][color=#0000bb]c1[/color][color=#007700]+[/color][color=#dd0000]","[/color][color=#007700]+[/color][color=#0000bb]c2[/color][color=#007700]+[/color][color=#dd0000]","[/color][color=#007700]+[/color][color=#0000bb]c3[/color][color=#007700]+[/color][color=#dd0000]")"[/color][color=#007700]); }}[/color]

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**dinhgiabao10** · 08-25-2014, 07:00 AM

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]btap_1 [/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]b[/color][color=#007700],[/color][color=#0000bb]c[/color][color=#007700];        [/color][color=#0000bb]a[/color][color=#007700]=[/color][color=#0000bb]3[/color][color=#007700]; [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]8[/color][color=#007700]; [/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]12[/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 " [/color][color=#007700]+ [/color][color=#0000bb]a [/color][color=#007700]+[/color][color=#dd0000]" chia 2 là:" [/color][color=#007700]+ [/color][color=#0000bb]a [/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 nguyên " [/color][color=#007700]+ [/color][color=#0000bb]b [/color][color=#007700]+[/color][color=#dd0000]" chia 2 là:" [/color][color=#007700]+ [/color][color=#0000bb]b [/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 nguyên " [/color][color=#007700]+ [/color][color=#0000bb]c [/color][color=#007700]+[/color][color=#dd0000]" chia 2 là:" [/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 " [/color][color=#007700]+ [/color][color=#0000bb]a [/color][color=#007700]+[/color][color=#dd0000]" chia 3 là:" [/color][color=#007700]+ [/color][color=#0000bb]a [/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 " [/color][color=#007700]+ [/color][color=#0000bb]b [/color][color=#007700]+[/color][color=#dd0000]" chia 3 là:" [/color][color=#007700]+ [/color][color=#0000bb]b [/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 " [/color][color=#007700]+ [/color][color=#0000bb]c [/color][color=#007700]+[/color][color=#dd0000]" chia 3 là:" [/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]"số a sau khi tăng 1 đơn vị là:" [/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]"số b sau khi tăng 1 đơn vị là:" [/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]"số c sau khi tăng 1 đơn vị là:" [/color][color=#007700]+ [/color][color=#0000bb]c[/color][color=#007700]);    }    }[/color]

**milogaudaik** · 08-25-2014, 07:00 AM

public class btap_1 {
public static void main(string[] args) {
int a,b,c;
a=3; b=8; c=12;
system.out.println("phần nguyên " + a +" chia 2 là:" + a / 2);
system.out.println("phần nguyên " + b +" chia 2 là:" + b /2);
system.out.println("phần nguyên " + c +" chia 2 là:" + c / 2);
system.out.println("phần dư " + a +" chia 3 là:" + a % 2);
system.out.println("phần dư " + b +" chia 3 là:" + b % 2);
system.out.println("phần dư " + c +" chia 3 là:" + c % 2);
a++; b++; c++;
system.out.println("số a sau khi tăng 1 đơn vị là:" + a);
system.out.println("số b sau khi tăng 1 đơn vị là:" + b);
system.out.println("số c sau khi tăng 1 đơn vị là:" + c);
}

}

**chuyenbanonline** · 08-31-2014, 07:00 AM

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

bai 1 (open)
bai 1 (close)

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

Mã:

	public class kell {
public static void main(string[] args) {
int a,b,c;
a=1;b=2;c=3;
system.out.println("phan nguyen khi chia "+a+" cho 2 = "+a/2);
system.out.println("phan nguyen khi chia "+b+" cho 2 = "+b/2);
system.out.println("phan nguyen khi chia "+c+" cho 2 = "+c/2);
system.out.println("phan du khi chia "+a+" cho 2 = "+a%2);
system.out.println("phan du khi chia "+b+" cho 2 = "+b%2);
system.out.println("phan du khi chia "+c+" cho 2 = "+c%2);
a++;b++;c++;
system.out.println("tang len 1 don vi = "+a);
system.out.println("tang len 1 don vi = "+b);
system.out.println("tang len 1 don vi = "+c);

}

}

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

**minhchau221** · 08-31-2014, 07:00 AM

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

bài 2 (open)
bài 2 (close)

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

Mã:

public class kell {
	public static void main(string[] args) {
		float a,b,c,x;
		a=2.4f;b=5.0f;c=4.6f;
		if(a==0)
			system.out.println("nhap sai roi babe");
		 else
		{
		x=(8*c-b)/(2*a);
		system.out.println("ket qua x cua phep tinh 2ax+b = 8c la: x= "+x);
		x=(int)x;
		system.out.println("ket qua cua x sau khi ep kieu la: x= "+x);
		}
 
	}
   
}

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

**gatobakingspace** · 08-31-2014, 07:00 AM

<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>bai 3 (move your mouse to reveal the content)</noscript>

bai 3 (open)
bai 3 (close)

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

Mã:

public class kell {
	public static void main(string[] args) {
		int a,b,c;
		a=3;b=5;c=4;
		if(a+b<=c||a+c<=b||b+c<=a)
		{
			system.out.println("day khong phai tam giac");
		}
		else
		{
			float t=(a+b+c)/2;
			float s;
			s=(float)math.sqrt(t*(t-a)*(t-b)*(t-c));
			system.out.println("dien tich cua hinh "+s);
			float goc1=(float)math.asin((double)(2*s)/(a*b));
			float goc2=(float)math.asin((double)(2*s)/(c*b));
			float goc3=(float)math.asin((double)(2*s)/(a*c));
			system.out.println("goc giua canh a va b "+goc1);
			system.out.println("goc giua canh c va b "+goc2);
			system.out.println("goc giua canh c va a "+goc3);
			
		}
 
	}
	
}

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

**Lưu An** · 09-14-2014, 07:00 AM

em lam bai tap bang eclipse thi lam sao de dua duoc code len de cham bai ha anh?????em moi bat dau hoc java.mong cac anh giup

**datnendongxoai.thach** · 09-28-2014, 07:00 AM

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

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

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]timphandunguyen [/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]6[/color][color=#007700];        [/color][color=#0000bb]int b [/color][color=#007700]= [/color][color=#0000bb]7[/color][color=#007700];        [/color][color=#0000bb]int c [/color][color=#007700]= [/color][color=#0000bb]8[/color][color=#007700];        [/color][color=#0000bb]int phannguyen1[/color][color=#007700], [/color][color=#0000bb]phannguyen2[/color][color=#007700], [/color][color=#0000bb]phannguyen3[/color][color=#007700];        [/color][color=#0000bb]int phandu1[/color][color=#007700], [/color][color=#0000bb]phandu2[/color][color=#007700], [/color][color=#0000bb]phandu3[/color][color=#007700];                [/color][color=#0000bb]phannguyen1 [/color][color=#007700]= [/color][color=#0000bb]a [/color][color=#007700]/ [/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]phannguyen2 [/color][color=#007700]= [/color][color=#0000bb]b [/color][color=#007700]/ [/color][color=#0000bb]2[/color][color=#007700];        [/color][color=#0000bb]phannguyen3 [/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 nguyên của a: " [/color][color=#007700]+ [/color][color=#0000bb]phannguyen1[/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 của b: " [/color][color=#007700]+ [/color][color=#0000bb]phannguyen2[/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 của c: " [/color][color=#007700]+ [/color][color=#0000bb]phannguyen3[/color][color=#007700]);                                [/color][color=#0000bb]phandu1 [/color][color=#007700]= [/color][color=#0000bb]a [/color][color=#007700]% [/color][color=#0000bb]3[/color][color=#007700];        [/color][color=#0000bb]phandu2 [/color][color=#007700]= [/color][color=#0000bb]b [/color][color=#007700]% [/color][color=#0000bb]3[/color][color=#007700];        [/color][color=#0000bb]phandu3 [/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]"phần dư của a: " [/color][color=#007700]+ [/color][color=#0000bb]phandu1[/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 của b: " [/color][color=#007700]+ [/color][color=#0000bb]phandu2[/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 của c: " [/color][color=#007700]+ [/color][color=#0000bb]phandu3[/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 của a sau khi tăng 1: " [/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 của b sau khi tăng 1: " [/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]"giá trị của c sau khi tăng 1: " [/color][color=#007700]+ [/color][color=#0000bb]c[/color][color=#007700]);            }        }[/color]

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

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

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

Mã nguồn PHP:


[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]giaiphuongtrinh [/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]5[/color][color=#007700], [/color][color=#0000bb]b [/color][color=#007700]= [/color][color=#0000bb]6[/color][color=#007700], [/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]7[/color][color=#007700];        [/color][color=#0000bb]float x[/color][color=#007700];        [/color][color=#0000bb]int x1[/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 của x là: " [/color][color=#007700]+ [/color][color=#0000bb]x[/color][color=#007700]);                [/color][color=#0000bb]x1 [/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 ép kiểu của x là: " [/color][color=#007700]+[/color][color=#0000bb]x1[/color][color=#007700]);    }    }[/color]

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

<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]dientichtamgiac [/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]50[/color][color=#007700], [/color][color=#0000bb]b [/color][color=#007700]=[/color][color=#0000bb]24[/color][color=#007700], [/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]45[/color][color=#007700];        [/color][color=#0000bb]int dientich1[/color][color=#007700];        [/color][color=#0000bb]float dientich[/color][color=#007700], [/color][color=#0000bb]chuvi[/color][color=#007700];        [/color][color=#0000bb]chuvi [/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]dientich [/color][color=#007700]= (float) [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]chuvi [/color][color=#007700]* ([/color][color=#0000bb]chuvi [/color][color=#007700]- [/color][color=#0000bb]a[/color][color=#007700]) * ([/color][color=#0000bb]chuvi [/color][color=#007700]- [/color][color=#0000bb]b[/color][color=#007700]) * ([/color][color=#0000bb]chuvi [/color][color=#007700]- [/color][color=#0000bb]c[/color][color=#007700]));        [/color][color=#0000bb]dientich1 [/color][color=#007700]= (int) [/color][color=#0000bb]dientich[/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 của tam giác: " [/color][color=#007700]+ [/color][color=#0000bb]dientich1[/color][color=#007700]);    }}[/color]

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

**caohongquang** · 10-04-2014, 07:00 AM

mình nộp bài , cảm ơn "thầy" nhé

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

bài tập 1 (open)
bài tập 1 (close)

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

Mã nguồn PHP:


[color=#000000]
import java[/color][color=#007700].[/color][color=#0000bb]io[/color][color=#007700].*;class [/color][color=#0000bb]baisomot [/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]10[/color][color=#007700];        [/color][color=#0000bb]int b [/color][color=#007700]= [/color][color=#0000bb]15[/color][color=#007700];        [/color][color=#0000bb]int c [/color][color=#007700]= [/color][color=#0000bb]22[/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 phần nguyên của " [/color][color=#007700]+ [/color][color=#0000bb]a [/color][color=#007700]+[/color][color=#dd0000]" chia cho 2 là " [/color][color=#007700]+([/color][color=#0000bb]a[/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]"kết quả phần nguyên của " [/color][color=#007700]+ [/color][color=#0000bb]b [/color][color=#007700]+[/color][color=#dd0000]" chia cho 2 là " [/color][color=#007700]+([/color][color=#0000bb]b[/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]"kết quả phần nguyên của " [/color][color=#007700]+ [/color][color=#0000bb]c [/color][color=#007700]+[/color][color=#dd0000]" chia cho 2 là " [/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]"
"[/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 phần dư của " [/color][color=#007700]+ [/color][color=#0000bb]a [/color][color=#007700]+[/color][color=#dd0000]" chia cho 3 là " [/color][color=#007700]+([/color][color=#0000bb]a[/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]"kết quả phần dư của " [/color][color=#007700]+ [/color][color=#0000bb]b [/color][color=#007700]+[/color][color=#dd0000]" chia cho 3 là " [/color][color=#007700]+([/color][color=#0000bb]b[/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]"kết quả phần dư của " [/color][color=#007700]+ [/color][color=#0000bb]c [/color][color=#007700]+[/color][color=#dd0000]" chia cho 3 là " [/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]"
"[/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 của a khi tăng lên 1 biến " [/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 mới của a khi tăng lên 1 biến " [/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]"giá trị mới của a khi tăng lên 1 biến " [/color][color=#007700]+[/color][color=#0000bb]c[/color][color=#007700]);[/color]

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

bài tập 2 (open)
bài tập 2 (close)

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

Mã nguồn PHP:


[color=#000000]
import java[/color][color=#007700].[/color][color=#0000bb]io[/color][color=#007700].*;class [/color][color=#0000bb]baisohai [/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]10.5f[/color][color=#007700];    [/color][color=#0000bb]float b [/color][color=#007700]= [/color][color=#0000bb]5.7f[/color][color=#007700];    [/color][color=#0000bb]float c [/color][color=#007700]= [/color][color=#0000bb]11.4f[/color][color=#007700];    [/color][color=#0000bb]float x[/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]"gia trị x cần tìm là " [/color][color=#007700]+ [/color][color=#0000bb]x[/color][color=#007700]);    [/color][color=#0000bb]float sothuc [/color][color=#007700]= [/color][color=#0000bb]x[/color][color=#007700];    [/color][color=#0000bb]int songuyen[/color][color=#007700];    [/color][color=#0000bb]songuyen [/color][color=#007700]= (int) [/color][color=#0000bb]sothuc[/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 nguyên của x là " [/color][color=#007700]+[/color][color=#0000bb]songuyen[/color][color=#007700]);    }[/color]

}
</blockquote></div>
</div>
</div>
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>bài tập 3 (move your mouse to reveal the content)</noscript>

bài tập 3 (open)
bài tập 3 (close)

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

Mã nguồn PHP:


[color=#000000]
import java[/color][color=#007700].[/color][color=#0000bb]io[/color][color=#007700].*;class [/color][color=#0000bb]baisoba [/color][color=#007700]{public static [/color][color=#0000bb]void main[/color][color=#007700]([/color][color=#0000bb]string args[/color][color=#007700][]) {[/color][color=#0000bb]double a[/color][color=#007700]=[/color][color=#0000bb]5 [/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]6 [/color][color=#007700], [/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]10 [/color][color=#007700],[/color][color=#0000bb]p [/color][color=#007700],[/color][color=#0000bb]s[/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]= [/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]"tổng diện tích tam giác là " [/color][color=#007700]+[/color][color=#0000bb]s[/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]"không biết công thức tính góc :p"[/color][color=#007700]);}}[/color]

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

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

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