demo04-2026-08-10去掉控制台最后的，(2)输入参数实现对平闰年的判断

package JAVASE;

import java.util.Scanner;

//2026-08-10去掉控制台最后的，(2)输入参数实现对平闰年的判断
public class demo04 {
    private int day;
    private int month;
    private int year;
    public static void printInfo(int flag, int i){
        for(int j = 1; j <= flag; j++){
            if(j == flag){
                System.out.print(i + "月" + j + "日");
                System.out.println("\n");
            }else {
                System.out.print(i + "月" + j + "日" + ",");
            }
        }
//        switch (flag){
//            case 28:
//                for (int j = 1; j <= 28; j++) {
//                    if(j==28){
//                        System.out.print(i + "月" + j + "日");
//                    }else {
//                        System.out.print(i + "月" + j + "日" + ",");
//                    }
//                }
//                break;
//            case 29:
//                for (int j = 1; j <= 29; j++) {
//                    if(j==29){
//                        System.out.print(i + "月" + j + "日");
//                    }else {
//                        System.out.print(i + "月" + j + "日" + ",");
//                    }
//                }
//                break;
//            case 30:
//                for (int j = 1; j <= 30; j++) {
//                    if(j==30){
//                        System.out.print(i + "月" + j + "日");
//                    }else {
//                        System.out.print(i + "月" + j + "日" + ",");
//                    }
//                }
//                break;
//            case 31:
//                for (int j = 1; j <= 31; j++) {
//                    if(j==31){
//                        System.out.print(i + "月" + j + "日");
//                    }else {
//                        System.out.print(i + "月" + j + "日" + ",");
//                    }
//                }
//                break;
//        }

}

public static void main(String[] args) {
        System.out.println("请输入年份：");
        Scanner scanner = new Scanner(System.in);
        int year = scanner.nextInt();
        Boolean yearBolean = YearDay(year);
        if(yearBolean){
            System.out.println("输入的年份为闰年！！！");
        }else {
            System.out.println("输入的年份为不是闰年！！！");
        }
//        boolean result = false;
        for (int i = 1; i <= 12; i++) {
            if (i == 1 || i == 3 ||i == 5 ||i == 7 ||i == 8 ||i == 10 ||i == 12){
                printInfo(31,i);
                System.out.println();
            }
            else if(i == 2) {
                if (yearBolean == false){
                    printInfo(28,i);
                    System.out.println();
                }else {
                    printInfo(29,i);
                    System.out.println();
                }
            }else {
                printInfo(30,i);
                System.out.println();
            }
        }
        scanner.close();
    }

public static boolean YearDay(int yaer){
        boolean day =false;
        if(yaer % 4 == 0){
            day =true;
        }
        return day;
    }
}