JAVA

leap year program in java

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

java leap year expression

(year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0))

java leap year

  public static void main(String[] args) {
        int year = 2005;

        if ((year % 400 == 0) || ((year % 4 == 0) && (year % 100 != 0))){
            System.out.println(year+" leap year");
        }else {
            System.out.println(year+" not a leap year");
        }
    }

java leap years

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

java leap years

public static boolean isLeapYear(int year) {
  Calendar cal = Calendar.getInstance();
  cal.set(Calendar.YEAR, year);
  return cal.getActualMaximum(Calendar.DAY_OF_YEAR) > 365;
}