java小程序实例 闰年

判断闰年.

package com.test;


import java.util.Scanner;


import org.junit.Test;


public class TestRunNian {


@Test
public void test1() {

Scanner scanner = new Scanner(System.in);

while (true) {
int year = scanner.nextInt();


if (year == -1) {
System.out.println("程序结束!");
return;
}


if (year < 100 || year > 3000) {
System.out.println("年份输入有误");
} else {
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
System.out.println("输入的年份是闰年");
} else {
System.out.println("输入的不是闰年");
}
}
}
}
}