leapyear.java

1+2+3...累加到最接近2009的数

package javaobj_task1;

import java.util.Scanner;

public class LeapYear {
	public static void leapyear(String[] args) {
		Scanner year = new Scanner(System.in);
		System.out.println("输入年份：");
		int i = year.nextInt();
		if (i%4==0&&i%100!=0||i%400==0)
		System.out.println("是闰年");
		else
		System.out.println("不是闰年");
	}
}