architectapp4.java

来自「java程序设计语言源代码」· Java 代码 · 共 31 行

//Example 11 of Chapter 2

import javax.swing.JOptionPane;

public class ArchitectApp4
{
	public static void main(String[] args)
	{
		String output = "";
		int num2=0;
		int num5=0;
		for(int i=1;i<=100;i++)
		{
			int s=i;
			while(s%2==0)
			{
				s/=2;
				++num2;
			}
			while(s%5==0)
			{
				s/=5;
				++num5;
			}
		}
		output +="共含有约数2："+num2+"个，约数5："+num5+"个。";
		output +="\n在100!的低位区中共有"+(num2<num5?num2:num5)+"个0。";
		JOptionPane.showMessageDialog(null,output);
		System.exit(0);
	}
}