Question

JAVA编程 输入一个年份，判断是否是闰年（通过Calendar来实现）

Answer 1

import java.util.Calendar;
import java.util.Scanner;

public class Test {
	public static void main(String[] args) {
		Calendar c = Calendar.getInstance();
		System.out.println("输入年份：");
		Scanner sc = new Scanner(System.in);
		int year = sc.nextInt();
		c.set(year, Calendar.DECEMBER, 31);
		if (c.get(Calendar.DAY_OF_YEAR) == 366) {
			System.out.println(year + "年是闰年");
		} else {
			System.out.println(year + "年平年");
		}
	}
}

Answer 2

public void isLeapYear(int years){
Calendar cal=Calendar.getInstance();
cal.set(years,Calendar.DECEMBER,31);
if(cal.get(Calendar.DAY_OF_YEAR)==366){
System.out.println(years+"年是闰年");
}else{
System.out.println(years+"年平年");
}
}