java 循环

package com.forkeon.test;

import java.util.Scanner;

/**

• 循环
• while do...while for
• while 语法:
• do while语法:
• do{
• }
• while();
• for 循環
• break 跳出循環
• continue 結束本次循環執行下次循環
• @author Administrator

*/

public class loopdemo {
public static void main(String[] args) {

    /*  for (int i = 0; i < 10; i++) {
        System.out.println(i);
        
    }
    
String name="";// 商业名称
    double price=0.0;//商品价格
    int productNo=0;//商品编号
    
    System.out.println("............");
    System.out.println("请选择你要购买的商品的编号");
    System.out.println("1.钢琴   2.吉他   3.键盘");
    System.out.println(".............");
    
    Scanner input=new Scanner(System.in);
    String answer="y";//表示是否继续
    while (answer.equals("y")) 
    {
        
   
        System.out.println("请输入商品编号");
        productNo=input.nextInt();
        switch (productNo)
      {
        case 1:
            name="钢琴";
            price=20000;
            break;
        case 2:
            name="吉他";
            price=15000;
            break;
        case 3:
            name="键盘";
            price=40000;
            break;
        }
        System.out.println(name+"....."+price);
        System.out.println("是否继续（y/n）");
        answer=input.next();
    }
       
        System.out.println("退出程序...");
            
            


    
    
    
    
    
    
/*  int x=1;
    while (x<=10) {
        int y=0;
        System.out.println(x);
        x++;
        
    }
    
    System.out.println("asfsdfaf");
    System.out.println("asfasf");    */
    
    
    
}

}