a01.java

JAVA程序—闰年的验证

import java.io.*;

public class a01
{
  public static void main(String args[]) throws java.io.IOException
  {
  	String s1;
  	int    year;
  	DataInputStream con1= new DataInputStream(System.in);
  	System.out.println("请输入年份:");
  	s1=con1.readLine();
  	year=new Integer(s1).intValue();
  	if( (year%4==0  && year%100==0) || (year%400==0))
  	  {
  	  	System.out.println("是闰年.");
  	  }
  	 else
  	    System.out.println("不是闰年");
   }	
 }