is it a leap year in java code example

Example 1: 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;
  }
}

Example 2: java leap year expression

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