计算某年是不是闰年,其中某月有多少天

自己瞎写的,感觉有点繁琐,刚开始学习编程
public static void main(String[] args) {
    	   int year;
    	   int month;
    	   int days;
    	   Scanner scanner = new Scanner(System.in);
    	   System.out.println("请输入年份:");
    	   year = scanner.nextInt();
    	   System.out.println("请输入月份:");
    	   month = scanner.nextInt();
    	   boolean boo1 = year%4 == 0 && year%100 == 0 || year%400 == 0 ? true:false;
    	   if(boo1) {
    		   switch(month) {
    		   case 1: System.out.println(year+"是闰年,"+month+"月有31天。");
    		           break;
    		   case 2: System.out.println(year+"是闰年,"+month+"月有29天");
    		           break;
    		   case 3: System.out.println(year+"是闰年,"+month+"月有31天。");
    		           break;
    		   case 4: System.out.println(year+"是闰年,"+month+"月有30天。");
                       break;
    		   case 5: System.out.println(year+"是闰年,"+month+"月有31天。");
	                   break;
    		   case 6: System.out.println(year+"是闰年,"+month+"月有30天。");
                       break;
	           case 7: System.out.println(year+"是闰年,"+month+"月有31天。");
	                   break;
	           case 8: System.out.println(year+"是闰年,"+month+"月有31天。");
	                   break;
	           case 9: System.out.println(year+"是闰年,"+month+"月有30天。");
                       break;
	           case 10: System.out.println(year+"是闰年,"+month+"月有31天。");
	                   break;
	           case 11: System.out.println(year+"是闰年,"+month+"月有30天。");
                       break;
	           case 12: System.out.println(year+"是闰年,"+month+"有31天。");
                       break;
               default: System.out.println("输入错误,请重新开始");
        }
     }else {
    	 switch(month) {
    	 case 1: System.out.println(year+"不是闰年,"+month+"月有31天。");
                 break;
    	 case 2: System.out.println(year+"不是闰年,"+month+"月有28天。");
                 break;
    	 case 3: System.out.println(year+"不是闰年,"+month+"月有31天。");
    	         break;
         case 4: System.out.println(year+"不是闰年,"+month+"月有30天。");
                 break;
         case 5: System.out.println(year+"不是闰年,"+month+"月有31天。");
                 break;
         case 6: System.out.println(year+"不是闰年,"+month+"月有30天。");
                 break;
         case 7: System.out.println(year+"不是闰年,"+month+"月有31天。");
                 break;
         case 8: System.out.println(year+"不是闰年,"+month+"月有31天。");
                 break;
         case 9: System.out.println(year+"不是闰年,"+month+"月有30天。");
                 break;
         case 10: System.out.println(year+"不是闰年,"+month+"月有31天。");
                 break;
         case 11: System.out.println(year+"不是闰年,"+month+"月有30天。");
                 break;
         case 12: System.out.println(year+"不是闰年,"+month+"月有31天。");
                 break;
         default: System.out.println("输入错误,请重新开始");
    	 }
     }

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转载自blog.csdn.net/yang_xinqiao/article/details/81037449