判断是否是闰年

package mytest;

import java.util.Scanner;

public class Bissextile {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int year; //定义输入的年份名字为“year”
Scanner scanner = new Scanner(System.in);
System.out.println();
System.out.println("****请输入年份:");
year = scanner.nextInt();
if (year<0||year>3000)
{
System.out.println("输入的年份有误，程序退出！");
System.exit(0);
}
if ((year%4==0)&&(year%100!=0)||(year%400==0))
System.out.println(year+" is bissextile");
else
System.out.println(year+" is not bissextile ");
}

}