代码如下:

MyDate类:

public class MyDate { private int year; private int month; private int day;

public boolean isLeapYear() {
    if(year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
        return true;
    } else {
        return false;
    }
}

public void set(int y, int m, int d) {
    year = y;
    month = m;
    day = d;
}

}

测试类:

public class Test { public static void main(String[] args) { MyDate date = new MyDate(); date.set(2020, 2, 29); System.out.println(date.isLeapYear()); }


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