确定使用Java的leap年? [英] Determine leap year using Java?

问题描述

这是我的要求.确定年份是否为a年算法:

Here is my requirements. Determine If a Year Is a Leap Year Algorithm:

• 如果年份可以平均除以4，则表示a年
  • 除非年份可以平均除以100，否则它不是a年
  • If the year can be evenly divided by 4, then it is a leap year
    • Except when the year can be evenly divided by 100, then it is not a leap year

    我需要知道我做得对吗?

    I need to know if i did right?

    private static boolean isLeapYear(int userInput){
        boolean leapYear= false;
    
        if (userInput % 4 == 0 ){
            leapYear = true;
    
            if (userInput % 4 == 0 && userInput % 100 ==0) {
                leapYear = false;
    
                if(userInput % 400 == 0){
                    leapYear = true;
                }
            }
        }
        else {
            leapYear = false;
        }
    
        return leapYear;
    }
    

    推荐答案

    userInput % 4 == 0 && userInput % 100 ==0等效于userInput % 400 == 0

    和userInput % 4 == 0，那么绝对是Le年，因此无需检查其他任何情况.

    and userInput % 4 == 0 then it is definitely Leap year so need not to check any other condition.

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