JAVA小实例（七）

用户输入一个金额，计算机用小金额拼凑成指定金额

package test01;

import java.util.Scanner;



public class Coucoin {
	public static void main(String[] args)
	{
		Scanner in = new Scanner(System.in);
		System.out.println("请输入金额：");
		int amount = in.nextInt();
		//标记的使用
		Coin:
		for(int one=0; one<=amount; ++one)
		{
	     for(int five=0; five<=amount/5; ++five)
	     {
	      for(int ten=0; ten<=amount/10; ++ten)
	      {
	       for(int twenty=0; twenty<=amount/20; ++twenty)
	       {  
	    	 if(one+five*5+ten*10+twenty*20 == amount)
	    	 {
	    		 System.out.println(one+"张一元，"+five+"张五元，"+ten+"张十元，"+twenty+"张二十元的总和是"+amount);
	    		 break Coin;
	    	   }
	         }
	       }
	     }
	   }
    }
}

效果如下图所示：