Bài 10: Break và Continue trong Java

**chi chi** · 07-22-2014, 07:00 AM

ẹc..học về break vs continue mà sao m.n ko thấy dùng vậy..haizzz

**trongtam** · 07-22-2014, 07:00 AM

định tham khảo xem có ai làm bằng lệnh break hoặc continue ko để tham khảo mà

e chỉ làm đc theo for vs if thôi...mong pro kiểm tra hộ e
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Mã:

import java.util.scanner;
public class newmain {
 
	public static void main(string[] args) {
		int i;
		scanner sc = new scanner(system.in);
		system.out.print("nhập tổng số sinh viên: ");
		int n = sc.nextint();
		string a [] = new string[n];
		sc = new scanner(system.in);
	   
		for (i = 0;i < n;i++) {
			system.out.print("nhập tên sinh viên thứ " + (i + 1) + ": ");
			a[i] = sc.nextline();
		}
		system.out.println("");
	   
		system.out.println("danh sách sinh viên vừa nhập: ");
		for (i = 0;i < n;i++) {
			system.out.println("thứ "  + (i + 1) + ": " + a[i]);
		}
		system.out.println("");
		system.out.print("nhập tên sinh viên muốn tim: ");
		string b = sc.nextline();
		system.out.println("tên sinh viên bạn mới nhập là: " + b);
	   
		for (i = 0;i < n;i++) {
			if (b.equals(a[i])) {
				system.out.println("có trong danh sách" + "
" + "vịt trí của sinh viên này trong danh sách là: " + (i + 1));
			}else{
				system.out.println("không có tên trong danh sách này!!!");
			}
		}
	}
}

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**phat.se0er** · 07-28-2014, 07:00 AM

bạn xem dùm mình tại sao không cho nhập tên người thứ 1. cảm ơn
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Mã nguồn PHP:


[color=#000000]
[/color][color=#ff8000]/** to change this license header, choose license headers in project properties.* to change this template file, choose tools | templates* and open the template in the editor.*/[/color][color=#0000bb]package vidu[/color][color=#007700]; [/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700]; public class [/color][color=#0000bb]vidu [/color][color=#007700]{     [/color][color=#ff8000]/**     * @param args the command line arguments     */    [/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]scanner timkiem [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);   [/color][color=#0000bb]string arrten[/color][color=#007700][];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap so hoc sinh trong lop:"[/color][color=#007700]);    [/color][color=#0000bb]int n [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();    [/color][color=#0000bb]arrten [/color][color=#007700]= new [/color][color=#0000bb]string[/color][color=#007700][[/color][color=#0000bb]n[/color][color=#007700]];    for([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/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]"nhap ten hoc sinh thu " [/color][color=#007700]+ ([/color][color=#0000bb]i[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700]));    [/color][color=#0000bb]arrten [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextline[/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]"nhap ten hoc sinh can tim: "[/color][color=#007700]);        [/color][color=#0000bb]string tim [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();            [/color][color=#0000bb]labelall[/color][color=#007700]:        for ([/color][color=#0000bb]int j [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]j [/color][color=#007700]< [/color][color=#0000bb]10 [/color][color=#007700]; [/color][color=#0000bb]j[/color][color=#007700]++){            if ([/color][color=#0000bb]arrten[/color][color=#007700][[/color][color=#0000bb]j[/color][color=#007700]].[/color][color=#0000bb]equals[/color][color=#007700]([/color][color=#0000bb]tim[/color][color=#007700])){                [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]" day la hoc sinh thu: " [/color][color=#007700]+ ([/color][color=#0000bb]j[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700]));                break [/color][color=#0000bb]labelall[/color][color=#007700];        }        }        }}[/color]

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**men.tuan26** · 08-02-2014, 07:00 AM

Gửi bởi hell3880

bạn xem dùm mình tại sao không cho nhập tên người thứ 1. cảm ơn
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Mã nguồn PHP:


[color=#000000]
[/color][color=#ff8000]/** to change this license header, choose license headers in project properties.* to change this template file, choose tools | templates* and open the template in the editor.*/[/color][color=#0000bb]package vidu[/color][color=#007700];  [/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];  public class [/color][color=#0000bb]vidu [/color][color=#007700]{      [/color][color=#ff8000]/**     * @param args the command line arguments     */    [/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]scanner timkiem [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);   [/color][color=#0000bb]string arrten[/color][color=#007700][];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap so hoc sinh trong lop:"[/color][color=#007700]);    [/color][color=#0000bb]int n [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();    [/color][color=#0000bb]arrten [/color][color=#007700]= new [/color][color=#0000bb]string[/color][color=#007700][[/color][color=#0000bb]n[/color][color=#007700]];    for([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/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]"nhap ten hoc sinh thu " [/color][color=#007700]+ ([/color][color=#0000bb]i[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700]));    [/color][color=#0000bb]arrten [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextline[/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]"nhap ten hoc sinh can tim: "[/color][color=#007700]);        [/color][color=#0000bb]string tim [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();          [/color][color=#0000bb]labelall[/color][color=#007700]:        for ([/color][color=#0000bb]int j [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]j [/color][color=#007700]< [/color][color=#0000bb]10 [/color][color=#007700]; [/color][color=#0000bb]j[/color][color=#007700]++){            if ([/color][color=#0000bb]arrten[/color][color=#007700][[/color][color=#0000bb]j[/color][color=#007700]].[/color][color=#0000bb]equals[/color][color=#007700]([/color][color=#0000bb]tim[/color][color=#007700])){                [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]" day la hoc sinh thu: " [/color][color=#007700]+ ([/color][color=#0000bb]j[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700]));                break [/color][color=#0000bb]labelall[/color][color=#007700];        }        }        }}[/color]

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bạn thử chạy xem cái này nhé..mình đã sửa nhưng không biết có hợp ý bạn không

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Mã nguồn PHP:


[color=#000000]
import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];public class [/color][color=#0000bb]newmain [/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]scanner timkiem [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);        [/color][color=#0000bb]string arrten[/color][color=#007700][];        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap so hoc sinh trong lop:"[/color][color=#007700]);        [/color][color=#0000bb]int n [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();        [/color][color=#0000bb]arrten [/color][color=#007700]= new [/color][color=#0000bb]string[/color][color=#007700][[/color][color=#0000bb]n[/color][color=#007700]];        [/color][color=#0000bb]timkiem [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);               for([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]n[/color][color=#007700]; [/color][color=#0000bb]i[/color][color=#007700]++){        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap ten hoc sinh thu " [/color][color=#007700]+ ([/color][color=#0000bb]i[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700]));        [/color][color=#0000bb]arrten[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]] = [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();        }        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap ten hoc sinh can tim: "[/color][color=#007700]);        [/color][color=#0000bb]string tim [/color][color=#007700]= [/color][color=#0000bb]timkiem[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();           [/color][color=#0000bb]labelall[/color][color=#007700]:        for ([/color][color=#0000bb]int j [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]j [/color][color=#007700]< [/color][color=#0000bb]10 [/color][color=#007700]; [/color][color=#0000bb]j[/color][color=#007700]++){            if ([/color][color=#0000bb]arrten[/color][color=#007700][[/color][color=#0000bb]j[/color][color=#007700]].[/color][color=#0000bb]equals[/color][color=#007700]([/color][color=#0000bb]tim[/color][color=#007700])){                [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]" day la hoc sinh thu: " [/color][color=#007700]+ ([/color][color=#0000bb]j[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700]) + [/color][color=#dd0000]"
"[/color][color=#007700]);                break [/color][color=#0000bb]labelall[/color][color=#007700];        }        }        }}[/color]

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**trunghung2m3** · 08-08-2014, 07:00 AM

cam on ban

**quygiang** · 09-01-2014, 07:00 AM

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Mã nguồn PHP:


[color=#000000]
package baitapvenha[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]arrays[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];[/color][color=#ff8000]/*** bài 1: nhập 1 danh sách họ tên sinh viên 1 lớp học vào 1 mảng n phần tử. sắp* xếp theo thứ tự a, b, c ... rồi dùng thuật toán tìm kiếm nhị phân, tìm kiếm* chính xác tên sinh viên vừa nhập và in ra màn hình số thứ tự của sinh viên* đó!*/  [/color][color=#007700]public class [/color][color=#0000bb]buoi10 [/color][color=#007700]{         static [/color][color=#0000bb]scanner sc [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);         public [/color][color=#0000bb]void nhapsinhvien[/color][color=#007700]([/color][color=#0000bb]int sosv[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]htsv[/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]"nhap lop hoc co " [/color][color=#007700]+ [/color][color=#0000bb]sosv [/color][color=#007700]+ [/color][color=#dd0000]" sinh vien: "[/color][color=#007700]);                 [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();                 for ([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]sosv[/color][color=#007700]; [/color][color=#0000bb]i[/color][color=#007700]++) {                       [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"sinh vien thu " [/color][color=#007700]+ ([/color][color=#0000bb]i [/color][color=#007700]+ [/color][color=#0000bb]1[/color][color=#007700]) + [/color][color=#dd0000]" : "[/color][color=#007700]);                       [/color][color=#0000bb]htsv[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]] = [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();                 }          }           public [/color][color=#0000bb]void xuatsinhvien[/color][color=#007700]([/color][color=#0000bb]int sosv[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]htsv[/color][color=#007700]) {                 [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"stt\tho va ten"[/color][color=#007700]);                 for ([/color][color=#0000bb]int i [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700]; [/color][color=#0000bb]i [/color][color=#007700]< [/color][color=#0000bb]sosv[/color][color=#007700]; [/color][color=#0000bb]i[/color][color=#007700]++) {                        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
" [/color][color=#007700]+ ([/color][color=#0000bb]i [/color][color=#007700]+ [/color][color=#0000bb]1[/color][color=#007700]) + [/color][color=#dd0000]"\t" [/color][color=#007700]+ [/color][color=#0000bb]htsv[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]]);                 }                 [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].[/color][color=#0000bb]println[/color][color=#007700]();         }           public [/color][color=#0000bb]void sapxepsv[/color][color=#007700]([/color][color=#0000bb]int sosv[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]htsv[/color][color=#007700]) {                 [/color][color=#0000bb]arrays[/color][color=#007700].[/color][color=#0000bb]sort[/color][color=#007700]([/color][color=#0000bb]htsv[/color][color=#007700]);          }           public [/color][color=#0000bb]int checksv[/color][color=#007700]([/color][color=#0000bb]string htsearch[/color][color=#007700], [/color][color=#0000bb]int sosv[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]htsv[/color][color=#007700]) {                 [/color][color=#0000bb]int index [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700], [/color][color=#0000bb]n [/color][color=#007700]= [/color][color=#0000bb]sosv [/color][color=#007700]- [/color][color=#0000bb]1[/color][color=#007700];                 [/color][color=#0000bb]int dem [/color][color=#007700]= -[/color][color=#0000bb]1[/color][color=#007700];                 while ([/color][color=#0000bb]index  0[/color][color=#007700]) {                       [/color][color=#0000bb]dem [/color][color=#007700]= ([/color][color=#0000bb]index [/color][color=#007700]+ [/color][color=#0000bb]n[/color][color=#007700]) / [/color][color=#0000bb]2[/color][color=#007700];                       if ([/color][color=#0000bb]htsv[/color][color=#007700][[/color][color=#0000bb]dem[/color][color=#007700]].[/color][color=#0000bb]equals[/color][color=#007700]([/color][color=#0000bb]htsearch[/color][color=#007700])) {                               return [/color][color=#0000bb]dem [/color][color=#007700]+ [/color][color=#0000bb]1[/color][color=#007700];                       }                       if ([/color][color=#0000bb]htsearch[/color][color=#007700].[/color][color=#0000bb]compareto[/color][color=#007700]([/color][color=#0000bb]htsv[/color][color=#007700][[/color][color=#0000bb]dem[/color][color=#007700]]) > [/color][color=#0000bb]0[/color][color=#007700]) {                              [/color][color=#0000bb]index [/color][color=#007700]= [/color][color=#0000bb]dem [/color][color=#007700]+ [/color][color=#0000bb]1[/color][color=#007700];                       } else {                              [/color][color=#0000bb]n [/color][color=#007700]= [/color][color=#0000bb]dem [/color][color=#007700]- [/color][color=#0000bb]1[/color][color=#007700];                       }                 }                 return -[/color][color=#0000bb]1[/color][color=#007700];          }           public [/color][color=#0000bb]void searchsv[/color][color=#007700]( [/color][color=#0000bb]int sosv[/color][color=#007700], [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]htsv[/color][color=#007700]) {               [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"
nhap sinh vien can tim: "[/color][color=#007700]);               [/color][color=#0000bb]string htsearch[/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();               [/color][color=#0000bb]int check [/color][color=#007700]= [/color][color=#0000bb]checksv[/color][color=#007700]([/color][color=#0000bb]htsearch[/color][color=#007700], [/color][color=#0000bb]sosv[/color][color=#007700], [/color][color=#0000bb]htsv[/color][color=#007700]);               if([/color][color=#0000bb]check[/color][color=#007700]!=-[/color][color=#0000bb]1[/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]"sinh vien can tim co stt = "[/color][color=#007700]+[/color][color=#0000bb]check[/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]"sinh vien vua nhap khong ton tai"[/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]buoi10 test [/color][color=#007700]= new [/color][color=#0000bb]buoi10[/color][color=#007700]();               [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap so luong sinh vien: "[/color][color=#007700]);               [/color][color=#0000bb]int sosv [/color][color=#007700]= [/color][color=#0000bb]sc[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();               [/color][color=#0000bb]string[/color][color=#007700][] [/color][color=#0000bb]htsv [/color][color=#007700]= new [/color][color=#0000bb]string[/color][color=#007700][[/color][color=#0000bb]sosv[/color][color=#007700]];               [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]nhapsinhvien[/color][color=#007700]([/color][color=#0000bb]sosv[/color][color=#007700], [/color][color=#0000bb]htsv[/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]"
lop co " [/color][color=#007700]+ [/color][color=#0000bb]sosv [/color][color=#007700]+ [/color][color=#dd0000]" sinh vien:"[/color][color=#007700]);               [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]xuatsinhvien[/color][color=#007700]([/color][color=#0000bb]sosv[/color][color=#007700], [/color][color=#0000bb]htsv[/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]sosv[/color][color=#007700]+[/color][color=#dd0000]" sinh vien sau khi sap xep: "[/color][color=#007700]);               [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]sapxepsv[/color][color=#007700]([/color][color=#0000bb]sosv[/color][color=#007700], [/color][color=#0000bb]htsv[/color][color=#007700]);               [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]xuatsinhvien[/color][color=#007700]([/color][color=#0000bb]sosv[/color][color=#007700], [/color][color=#0000bb]htsv[/color][color=#007700]);               [/color][color=#0000bb]test[/color][color=#007700].[/color][color=#0000bb]searchsv[/color][color=#007700]([/color][color=#0000bb]sosv[/color][color=#007700], [/color][color=#0000bb]htsv[/color][color=#007700]);       }}[/color]

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**senxanh72** · 10-02-2014, 07:00 AM

@tiasangmoi
<div class="bbcodeblock bbcodequote bbcmspoilerblock">
<div class="attribution type"><noscript>bài đã chạy tốt. mong có nhận xét (move your mouse to reveal the content)</noscript>

bài đã chạy tốt. mong có nhận xét (open)
bài đã chạy tốt. mong có nhận xét (close)

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

Mã nguồn PHP:


[color=#000000]
[/color][color=#ff8000]/** to change this license header, choose license headers in project properties.* to change this template file, choose tools | templates* and open the template in the editor.*/    [/color][color=#0000bb]package edu[/color][color=#007700].[/color][color=#0000bb]min[/color][color=#007700].[/color][color=#0000bb]basic[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]arrays[/color][color=#007700];[/color][color=#0000bb]import java[/color][color=#007700].[/color][color=#0000bb]util[/color][color=#007700].[/color][color=#0000bb]scanner[/color][color=#007700];[/color][color=#ff8000]/**** @author tommy_phan*/[/color][color=#007700]public class [/color][color=#0000bb]bai10 [/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]scanner nhap [/color][color=#007700]= new [/color][color=#0000bb]scanner[/color][color=#007700]([/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]in[/color][color=#007700]);        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap so sinh vien: "[/color][color=#007700]);        [/color][color=#0000bb]int n [/color][color=#007700]= [/color][color=#0000bb]nhap[/color][color=#007700].[/color][color=#0000bb]nextint[/color][color=#007700]();        [/color][color=#0000bb]nhap[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();        [/color][color=#0000bb]string [/color][color=#007700][][/color][color=#0000bb]a [/color][color=#007700]= new [/color][color=#0000bb]string[/color][color=#007700][[/color][color=#0000bb]n[/color][color=#007700]];        [/color][color=#0000bb]string check[/color][color=#007700];        [/color][color=#0000bb]int middle[/color][color=#007700];        for([/color][color=#0000bb]int i[/color][color=#007700]=[/color][color=#0000bb]0[/color][color=#007700];[/color][color=#0000bb]i[/color][color=#007700]<[/color][color=#0000bb]n[/color][color=#007700];[/color][color=#0000bb]i[/color][color=#007700]++){            [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap sinh vien thu "[/color][color=#007700]+([/color][color=#0000bb]i[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700])+[/color][color=#dd0000]": "[/color][color=#007700]);            [/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]]=[/color][color=#0000bb]nhap[/color][color=#007700].[/color][color=#0000bb]nextline[/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]"danh sach sau khi sap xep"[/color][color=#007700]);         [/color][color=#0000bb]arrays[/color][color=#007700].[/color][color=#0000bb]sort[/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700]);        for([/color][color=#0000bb]int i[/color][color=#007700]=[/color][color=#0000bb]0[/color][color=#007700];[/color][color=#0000bb]i[/color][color=#007700]<[/color][color=#0000bb]n[/color][color=#007700];[/color][color=#0000bb]i[/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]i[/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700])+[/color][color=#dd0000]". "[/color][color=#007700]+[/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]i[/color][color=#007700]]);        }        do{        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap ten sv can tim: "[/color][color=#007700]);        [/color][color=#0000bb]string name [/color][color=#007700]= [/color][color=#0000bb]nhap[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();        [/color][color=#0000bb]int left [/color][color=#007700]= [/color][color=#0000bb]0[/color][color=#007700];        [/color][color=#0000bb]int right [/color][color=#007700]= [/color][color=#0000bb]n[/color][color=#007700]-[/color][color=#0000bb]1[/color][color=#007700];       [/color][color=#ff8000]// trong lenh do while la tim lkiem nhi phan        [/color][color=#007700]do        {             [/color][color=#0000bb]middle [/color][color=#007700]= ([/color][color=#0000bb]right[/color][color=#007700]+[/color][color=#0000bb]left[/color][color=#007700])/[/color][color=#0000bb]2[/color][color=#007700];            if([/color][color=#0000bb]name [/color][color=#007700].[/color][color=#0000bb]equals [/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]middle[/color][color=#007700]]) )break;            else { [/color][color=#ff8000]// .compareto hinh nhu la phep tru                [/color][color=#007700]if([/color][color=#0000bb]name [/color][color=#007700].[/color][color=#0000bb]compareto [/color][color=#007700]([/color][color=#0000bb]a[/color][color=#007700][[/color][color=#0000bb]middle[/color][color=#007700]])<[/color][color=#0000bb]0[/color][color=#007700]) [/color][color=#0000bb]right [/color][color=#007700]= [/color][color=#0000bb]middle [/color][color=#007700]- [/color][color=#0000bb]1[/color][color=#007700];                else  [/color][color=#0000bb]left [/color][color=#007700]= [/color][color=#0000bb]middle [/color][color=#007700]+[/color][color=#0000bb]1[/color][color=#007700];            }           }        while ([/color][color=#0000bb]left[/color][color=#007700]<=[/color][color=#0000bb]right[/color][color=#007700]);               if([/color][color=#0000bb]left[/color][color=#007700]<=[/color][color=#0000bb]right[/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]"sv <<"[/color][color=#007700]+[/color][color=#0000bb]name[/color][color=#007700]+[/color][color=#dd0000]">> o vi tri "[/color][color=#007700]+([/color][color=#0000bb]middle[/color][color=#007700]+[/color][color=#0000bb]1[/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]"sv <<"[/color][color=#007700]+[/color][color=#0000bb]name[/color][color=#007700]+[/color][color=#dd0000]">> ko thay"[/color][color=#007700]);         do{        [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"tiep tuc an y. dung lai an n: "[/color][color=#007700]);          [/color][color=#0000bb]check [/color][color=#007700]= [/color][color=#0000bb]nhap[/color][color=#007700].[/color][color=#0000bb]nextline[/color][color=#007700]();          if([/color][color=#0000bb]check [/color][color=#007700].[/color][color=#0000bb]equals[/color][color=#007700]([/color][color=#dd0000]"y"[/color][color=#007700])||[/color][color=#0000bb]check [/color][color=#007700].[/color][color=#0000bb]equals[/color][color=#007700]([/color][color=#dd0000]"n"[/color][color=#007700]))            break;              else [/color][color=#0000bb]system[/color][color=#007700].[/color][color=#0000bb]out[/color][color=#007700].print([/color][color=#dd0000]"nhap sai."[/color][color=#007700]);         }while ([/color][color=#0000bb]check [/color][color=#007700].[/color][color=#0000bb]compareto [/color][color=#007700]([/color][color=#dd0000]"y"[/color][color=#007700]) !=[/color][color=#0000bb]0[/color][color=#007700]||[/color][color=#0000bb]check [/color][color=#007700].[/color][color=#0000bb]compareto [/color][color=#007700]([/color][color=#dd0000]"n"[/color][color=#007700]) !=[/color][color=#0000bb]0[/color][color=#007700]);            }while ([/color][color=#0000bb]check [/color][color=#007700].[/color][color=#0000bb]equals [/color][color=#007700]([/color][color=#dd0000]"y"[/color][color=#007700]) ); }        }[/color]

</blockquote></div>
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**theba2201** · 01-29-2015, 07:00 AM

* @author quanghuy
*/
import java.util.scanner;
public class ex1 {
public static void main(string[] args) {
scanner input = new scanner(system.in); //khoi tao doi tuong scanner
string sv_cantim;
int num;
system.out.print("nhap so sinh vien: ");
num = input.nextint();
input.nextline();
string[] sinhvien = new string[10];
for (int i = 0; i < num; i++) {
system.out.println("nhap ho va ten sinh vien " + (i + 1) + ": ");
sinhvien = input.nextline();
}
for (int i = num; i > 0; i--) {
for (int j = 0; j < i - 1; j++) {
if (sinhvien[j].compareto(sinhvien[j + 1]) > 0) {
string temp = sinhvien[j];
sinhvien[j] = sinhvien[j + 1];
sinhvien[j + 1] = temp;
}
}
}
for (int i = 0; i < num; i++) {
system.out.println("danh sach sinh vien sau khi sap xep: "+sinhvien);
}
//search sinh vien va tim so thu tu cua sinh vien do
system.out.println("nhap ten sinh vien can tim: ");
sv_cantim = input.nextline();
for (int i = 0; i < num; i++) {
if (sv_cantim.compareto(sinhvien) == 0) {
system.out.print("sinh vien can tim la: " + sinhvien);
system.out.println("sinh vien can tim nam o so thu tu: "+(i+1));
break;
} else {
if (i == num - 1) {
system.out.println("khong co sinh vien nay");
}
}
}

**dongtam84** · 03-16-2015, 07:00 AM

Gửi bởi viet55pm

anh giải thích hộ e bài này với...e không hiểu sao ra được đáp án như thế với cái ký hiệu "+="

Gửi bởi viet55pm

anh giải thích hộ e bài này với...e không hiểu sao ra được đáp án như thế với cái ký hiệu "+="

theo mình nghĩ, sum +=number <=> sum = sum + number,
number tăng lên từ 1 đến 20, đầu tiên number = 1 sum sẽ tăng lên 1, number = 2 => sum = sum (=1) + 2 = 3; number = 3 => sum = sum(3) + 3 = 6; ........ number = 20 => sum = sum(=190) + 20 = 210, ra đáp án là number = 15 và
sum = 105 vì kiểm tra đk sum > 100 sẽ break ra, sum =105 là kq cuối trc khi thoát ra vòng lặp while

Chủ đề: Bài 10: Break và Continue trong Java

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