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03-11-2014, 07:00 AM #51
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bài 1:
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Mã nguồn PHP:[color=#000000]
[/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]14[/color][color=#007700]; if ([/color][color=#0000bb]a [/color][color=#007700]% [/color][color=#0000bb]5 [/color][color=#007700]== [/color][color=#0000bb]0[/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 chia het cho 5"[/color][color=#007700]); } else [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"thương của a cho 5 là: "[/color][color=#007700]+ ([/color][color=#0000bb]a[/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]"số dư của a cho 5 là: "[/color][color=#007700]+ ([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]5[/color][color=#007700]) );[/color]
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bài 2
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Mã nguồn PHP:[color=#000000]
[/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]double 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]6[/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]; if (([/color][color=#0000bb]a[/color][color=#007700]>[/color][color=#0000bb]0[/color][color=#007700]) && ([/color][color=#0000bb]b[/color][color=#007700]>[/color][color=#0000bb]0[/color][color=#007700]) && [/color][color=#0000bb]c[/color][color=#007700]>[/color][color=#0000bb]0[/color][color=#007700]){ if (([/color][color=#0000bb]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]c[/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]a[/color][color=#007700]) { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"đây là số đo ba cạnh của một tam giác "[/color][color=#007700]); if (([/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]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]b[/color][color=#007700]*[/color][color=#0000bb]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]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"vuông"[/color][color=#007700]); } else if (([/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]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]"đều"[/color][color=#007700]); } else if (([/color][color=#0000bb]a[/color][color=#007700]==[/color][color=#0000bb]b[/color][color=#007700]) | ([/color][color=#0000bb]a[/color][color=#007700]==[/color][color=#0000bb]c[/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]"cân"[/color][color=#007700]); } else [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"thường"[/color][color=#007700]); } else [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"đây ko phải số đo ba cạnh của một tam giác"[/color][color=#007700]); } }}[/color]
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bài 3
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Mã nguồn PHP:[color=#000000]
[/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]double a[/color][color=#007700],[/color][color=#0000bb]b[/color][color=#007700],[/color][color=#0000bb]c[/color][color=#007700],[/color][color=#0000bb]x1[/color][color=#007700],[/color][color=#0000bb]x2[/color][color=#007700],[/color][color=#0000bb]dt[/color][color=#007700]; [/color][color=#0000bb]a [/color][color=#007700]= [/color][color=#0000bb]1[/color][color=#007700]; [/color][color=#0000bb]b [/color][color=#007700]= [/color][color=#0000bb]2[/color][color=#007700]; [/color][color=#0000bb]c [/color][color=#007700]= [/color][color=#0000bb]1[/color][color=#007700]; [/color][color=#0000bb]dt [/color][color=#007700]= ([/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700])-[/color][color=#0000bb]4[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]; [/color][color=#0000bb]x1 [/color][color=#007700]= ([/color][color=#0000bb]b[/color][color=#007700]*(-[/color][color=#0000bb]1[/color][color=#007700]) + [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]dt[/color][color=#007700]))/[/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]; [/color][color=#0000bb]x2 [/color][color=#007700]= ([/color][color=#0000bb]b[/color][color=#007700]*(-[/color][color=#0000bb]1[/color][color=#007700]) - [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]dt[/color][color=#007700]))/[/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]; if ([/color][color=#0000bb]a[/color][color=#007700]==[/color][color=#0000bb]0[/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]"đây ko phải phương trình bạc hai"[/color][color=#007700]); } else if ([/color][color=#0000bb]dt[/color][color=#007700]==[/color][color=#0000bb]0[/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]"phương trình có nghiệm kép"[/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]"x1 = x 2=" [/color][color=#007700]+ [/color][color=#0000bb]x1[/color][color=#007700]); } if ([/color][color=#0000bb]dt[/color][color=#007700]>[/color][color=#0000bb]0[/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]"phuonge trình có hai nghiệm phân biệt"[/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]"x1= "[/color][color=#007700]+ [/color][color=#0000bb]x1 [/color][color=#007700]+ [/color][color=#dd0000]" x2= "[/color][color=#007700]+ [/color][color=#0000bb]x2 [/color][color=#007700]); } if ([/color][color=#0000bb]dt[/color][color=#007700]<[/color][color=#0000bb]0[/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]"phương trình đã cho vô nghiệm"[/color][color=#007700]); } }}[/color]
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03-15-2014, 07:00 AM #52
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Gửi bởi bigcookies96
và dùng else if thì sẽ gọn và nhanh hơn dùng từng if.
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03-15-2014, 07:00 AM #53
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Mã:public class helloworld { public static void main(string[] args) { float a = -4; float b = 3; float c = 6; float delta = (b*b - 4*a*c); if (a == 0){ system.out.println("pt có nghiệm là: x = " + (-c)/b); } else if (delta > 0) { system.out.println("pt có 2 nghiệm:"); system.out.println("nghiệm x1:" + ((-b) - (math.sqrt(delta)))/(2*a)); system.out.println("nghiệm x2:" + ((b) - (math.sqrt(delta)))/2*a); } else if (delta == 0) { system.out.println("pt có nghiệm kép:"); system.out.println("nghiệm là: " + ((-b)/2*a)); } else { system.out.println("pt vô nghiệm"); } } }
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mọi người xem giúp nha
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03-21-2014, 07:00 AM #54
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- Ngày tham gia
- May 2014
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bt01
Mã nguồn PHP:[color=#000000]
[/color][color=#007700]public class [/color][color=#0000bb]booleanifelse1 [/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]123[/color][color=#007700]; if([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]5 [/color][color=#007700]== [/color][color=#0000bb]0[/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=#0000bb]a [/color][color=#007700]+ [/color][color=#dd0000]" chia het cho 5"[/color][color=#007700]); else { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#0000bb]a [/color][color=#007700]+ [/color][color=#dd0000]" khong chia het cho 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]"so nguyen: " [/color][color=#007700]+ ([/color][color=#0000bb]a[/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]"so du: " [/color][color=#007700]+ ([/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]5[/color][color=#007700])); } } }[/color]
Mã nguồn PHP:[color=#000000]
[/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]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]8f[/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 canh 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]); if ([/color][color=#0000bb]a [/color][color=#007700]== [/color][color=#0000bb]0 [/color][color=#007700]|| [/color][color=#0000bb]b [/color][color=#007700]== [/color][color=#0000bb]0 [/color][color=#007700]|| [/color][color=#0000bb]c [/color][color=#007700]== [/color][color=#0000bb]0[/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]"khong phai tam giac"[/color][color=#007700]); } else { if ([/color][color=#0000bb]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]c [/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]a[/color][color=#007700]) { if ([/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]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]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]) { if ([/color][color=#0000bb]a [/color][color=#007700]== [/color][color=#0000bb]b [/color][color=#007700]|| [/color][color=#0000bb]a [/color][color=#007700]== [/color][color=#0000bb]c [/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]"tam giac vuong can"[/color][color=#007700]); } else { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tam giac vuong"[/color][color=#007700]); } } if ([/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]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"tam giac deu"[/color][color=#007700]); } if ([/color][color=#0000bb]a [/color][color=#007700]== [/color][color=#0000bb]b [/color][color=#007700]|| [/color][color=#0000bb]a [/color][color=#007700]== [/color][color=#0000bb]c [/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]"tam giac can"[/color][color=#007700]); } else { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"la tam giac thuong"[/color][color=#007700]); } } else { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"khong phai tam giac !!"[/color][color=#007700]); } } }[/color]
Mã nguồn PHP:[color=#000000]
[/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]double 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]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"giai phuong trinh bac 2 ax^2 + bx + c = 0"[/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]"voi 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]); if([/color][color=#0000bb]a [/color][color=#007700]== [/color][color=#0000bb]0[/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]"khong phai phuong trinh bac 2"[/color][color=#007700]); else{ [/color][color=#0000bb]double sqrtdel [/color][color=#007700]= (([/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/color][color=#007700]) - ([/color][color=#0000bb]4[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700])); if([/color][color=#0000bb]sqrtdel [/color][color=#007700]< [/color][color=#0000bb]0[/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 trin vo nghiem"[/color][color=#007700]); else{ if([/color][color=#0000bb]sqrtdel [/color][color=#007700]== [/color][color=#0000bb]0[/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 mot nghiem kep x = " [/color][color=#007700]+ (-[/color][color=#0000bb]b[/color][color=#007700]/[/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700])); else{ [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"x1 = " [/color][color=#007700]+ (-[/color][color=#0000bb]b [/color][color=#007700]- [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]sqrtdel[/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]"x2 = " [/color][color=#007700]+ (-[/color][color=#0000bb]b [/color][color=#007700]+ [/color][color=#0000bb]math[/color][color=#007700].[/color][color=#0000bb]sqrt[/color][color=#007700]([/color][color=#0000bb]sqrtdel[/color][color=#007700]))/([/color][color=#0000bb]2[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700])); } } } }[/color]
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04-12-2014, 07:00 AM #55
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Gửi bởi bigcookies96
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04-12-2014, 07:00 AM #56
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nhờ thầy kiểm tra giúp với :d
bài 1 : chia 5
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Mã:import java.util.scanner; public class chiahet { private static scanner input; public static void main(string[] args) { input = new scanner(system.in); system.out.print("nhap vao so nguyen a: "); int a=input.nextint(); if (a % 5 == 0){ system.out.println("so "+a+" chia het cho 5"); } else { system.out.println("so "+a+" khong chia het cho 5"); system.out.println("thuong la : "+(a/5)+" so du la :"+(a%5));} } }
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bài 2: tam giac
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Mã:import java.util.scanner; public class tamgiac { private static scanner input; public static void main(string[] args) { input = new scanner(system.in); system.out.print("nhap vao 3 canh tam giac : "); int a=input.nextint(); int b=input.nextint(); int c=input.nextint(); if ((a<=0)||(b<=0)||(c<=0)){ system.out.println("no la thu gi do khong phai tam giac =))"); } else if ((a==b)&&(a==c)&&(b==c)){ system.out.println("day la tam giac deu"); } else if((a+b>c)||(a+c>b)||(b+c>a)){ system.out.println("day la tam giac thuong"); } else if ((a*a+b*b==c*c)||(a*a+c*c==b*b)||(b*b+c*c==a*a)){ system.out.println("day la tam giac vuong"); } else if (((a*a+b*b==c*c)&&(a==b))||((a*a+c*c==b*b)&&(a==c))||((b*b+c*c==a*a)&&(c==b))){ system.out.println("day la tam giac vuong can"); } else if ((a==b)&&(a!=c)||(a==c)&&(a!=b)||(b==c)&&(a!=b)){ system.out.println("day la tam giac can"); } } }
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bài 3 : giải pt
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Mã:import java.util.scanner; public class giaipt { private static scanner input; public static void main(string[] args) { input = new scanner(system.in); system.out.print("nhap vao 3 so cua pt a, b, c: "); double a=input.nextint(); double b=input.nextint(); double c=input.nextint(); double del, x1, x2; del=b*b-4*a*c; x1=-b-math.sqrt(del)/(2*a); x2=-b+math.sqrt(del)/(2*a); if (a==0){ system.out.println("pt bac nhat co nghiem x = " +(-b/c)); } else if (del==0){ system.out.println("pt "+a+"x2 + "+b+"x + "+c+" co nghiem kep x1 = x2 = "+(-b/(2*a))); } else if(del>0){ system.out.println("pt "+a+"x2 + "+b+"x + "+c+" co 2 nghiem:"); system.out.println("x1 = "+x1); system.out.println("x1 = "+x2); } else if((a==0)&&(b==0)&&(c==0)){ system.out.println("pt co vo so nghiem"); } else system.out.println("pt vo nghiem"); } }
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04-12-2014, 07:00 AM #57
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bài 1.
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Mã nguồn PHP:[color=#000000]
package bai2[/color][color=#007700]; public class [/color][color=#0000bb]bai1ifelse [/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]9[/color][color=#007700],[/color][color=#0000bb]du[/color][color=#007700]; [/color][color=#0000bb]float thuong[/color][color=#007700]; if([/color][color=#0000bb]a [/color][color=#007700]% [/color][color=#0000bb]5 [/color][color=#007700]== [/color][color=#0000bb]0[/color][color=#007700]){ [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"so a chia het cho 5"[/color][color=#007700]); } else { [/color][color=#0000bb]thuong[/color][color=#007700]=[/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]5[/color][color=#007700]; [/color][color=#0000bb]du[/color][color=#007700]=[/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]5[/color][color=#007700]; [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"thuong cua so a la: "[/color][color=#007700]+[/color][color=#0000bb]thuong[/color][color=#007700]+[/color][color=#dd0000]"
"[/color][color=#007700]+[/color][color=#dd0000]"du la: "[/color][color=#007700]+[/color][color=#0000bb]du[/color][color=#007700]); } }}[/color]
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04-12-2014, 07:00 AM #58
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Mã nguồn PHP:[color=#000000]
package bai2[/color][color=#007700]; public class [/color][color=#0000bb]bai1ifelse [/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]9[/color][color=#007700],[/color][color=#0000bb]du[/color][color=#007700]; [/color][color=#0000bb]float thuong[/color][color=#007700]; if([/color][color=#0000bb]a [/color][color=#007700]% [/color][color=#0000bb]5 [/color][color=#007700]== [/color][color=#0000bb]0[/color][color=#007700]){ [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"so a chia het cho 5"[/color][color=#007700]); } else { [/color][color=#0000bb]thuong[/color][color=#007700]=[/color][color=#0000bb]a[/color][color=#007700]/[/color][color=#0000bb]5[/color][color=#007700]; [/color][color=#0000bb]du[/color][color=#007700]=[/color][color=#0000bb]a[/color][color=#007700]%[/color][color=#0000bb]5[/color][color=#007700]; [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"thuong cua so a la: "[/color][color=#007700]+[/color][color=#0000bb]thuong[/color][color=#007700]+[/color][color=#dd0000]"
"[/color][color=#007700]+[/color][color=#dd0000]"du la: "[/color][color=#007700]+[/color][color=#0000bb]du[/color][color=#007700]); } }}[/color]
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04-12-2014, 07:00 AM #59
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bài 2.
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Mã nguồn PHP:[color=#000000]
package bai2[/color][color=#007700]; public class [/color][color=#0000bb]bai2ifelse1 [/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]1.45f[/color][color=#007700], [/color][color=#0000bb]b[/color][color=#007700]=[/color][color=#0000bb]1.45f[/color][color=#007700],[/color][color=#0000bb]c[/color][color=#007700]=[/color][color=#0000bb]2f[/color][color=#007700]; if (([/color][color=#0000bb]a[/color][color=#007700]>[/color][color=#0000bb]0 [/color][color=#007700]&& [/color][color=#0000bb]b[/color][color=#007700]>[/color][color=#0000bb]0 [/color][color=#007700]&& [/color][color=#0000bb]c[/color][color=#007700]>[/color][color=#0000bb]0 [/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]a[/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]c[/color][color=#007700])>[/color][color=#0000bb]a[/color][color=#007700])){ [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"a,b,c la ba cạnh của tam giác"[/color][color=#007700]+[/color][color=#dd0000]"
"[/color][color=#007700]);{ if([/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]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]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]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]"với độ dài ba cạnh đã cho thì đây là một tam giác vuông" [/color][color=#007700]);} else if (([/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]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]([/color][color=#dd0000]"với độ dài ba cạnh đã cho thì đây là một tam giác đều"[/color][color=#007700]); } else if ( (int)([/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])==(int)([/color][color=#0000bb]c[/color][color=#007700]*[/color][color=#0000bb]c[/color][color=#007700]) || (int)([/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])==(int)([/color][color=#0000bb]a[/color][color=#007700]*[/color][color=#0000bb]a[/color][color=#007700]) || (int)([/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])==(int)([/color][color=#0000bb]b[/color][color=#007700]*[/color][color=#0000bb]b[/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]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].print([/color][color=#dd0000]"với độ dài ba cạnh đã cho thì đây là một tam giác vuông cân."[/color][color=#007700]);} else if ([/color][color=#0000bb]a[/color][color=#007700]==[/color][color=#0000bb]b [/color][color=#007700]|| [/color][color=#0000bb]a[/color][color=#007700]==[/color][color=#0000bb]c [/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].print([/color][color=#dd0000]"với độ dài ba cạnh đã cho thì đây là tam giác cân"[/color][color=#007700]); }}} else { [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"với độ dài ba cạnh đã cho thì đây không phải là một tam giác"[/color][color=#007700]); } } }[/color][color=#0000bb]mình k làm được phần tam giác nhọn với tù bạn nào biết chỉ mình với nhé[/color][color=#007700]. [/color][color=#0000bb]cảm ơn các bạn[/color][color=#007700]! [/color]
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04-12-2014, 07:00 AM #60
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bài 2.
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Mã:package bai2; public class bai2ifelse1 { public static void main(string[] args){ float a=1.45f, b=1.45f,c=2f; if ((a>0 && b>0 && c>0 ) && ((a+b) >c || ((a+c)>b) || (b+c)>a)){ system.out.print("a,b,c la ba cạnh của tam giác"+" ");{ if(a*a+b*b==c*c || b*b+c*c==a*a || a*a+c*c==b*b && a ==b) { system.out.println("với độ dài ba cạnh đã cho thì đây là một tam giác vuông" );} else if ((a==b && b==c)) { system.out.println("với độ dài ba cạnh đã cho thì đây là một tam giác đều"); } else if ( (int)(a*a+b*b)==(int)(c*c) || (int)(b*b+c*c)==(int)(a*a) || (int)(a*a+c*c)==(int)(b*b) && ((a==b) || (b==c) || (a==c))) { system.out.print("với độ dài ba cạnh đã cho thì đây là một tam giác vuông cân.");} else if (a==b || a==c || b==c ) { system.out.print("với độ dài ba cạnh đã cho thì đây là tam giác cân"); }}} else { system.out.print("với độ dài ba cạnh đã cho thì đây không phải là một tam giác"); } } }
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mình không làm được tam giác nhọn với tù bạn nào biết chỉ mình với. cảm ơn các bạn.
Yếu sinh lý là tình trạng suy giảm chức năng tình dục ở nam giới, gây ảnh hưởng đến chất lượng cuộc sống và hạnh phúc gia đình. Để khắc phục vấn đề này, nhiều quý ông tìm đến các loại thuốc cương...
Yếu sinh lý ở đàn ông: Nên uống thuốc gì hiệu quả nhất?