Question

I have tried a few different methods, like print(boolean isLeapYear) and a few others, but I can not figure out how to get it to work. It always says that I have a missing class (boolean is primitive, does it need one?) Anyways, If the isLeapYear if-else statements are wrong, I’m not worried about those.. I just need to figure out how to print out the value of the boolean; any help / point in the right direction is greatly appreciated =]

import java.util.Scanner;

public class booleanfun    {
    boolean isLeapYear;

    public static void main(String[] args)
    {
        System.out.println("Enter a year to determine if it is a leap year or not: ");
        Scanner kboard = new Scanner(System.in);
        int year = kboard.nextInt();
    }
public boolean isLeapYear(int year)
  {
    if (year % 4 != 0)
        isLeapYear = false;

    else if ((year % 4 == 0) && (year % 100 == 0))
        isLeapYear = false;

    else if ((year % 4 == 0) && (year % 100 == 0) && (year % 400 == 0))
        isLeapYear = true;

    else
        isLeapYear = false;

System.out.println(isLeapYear);
System.out.println(boolean isLeapYear);

    return isLeapYear;
    }
}

Answer 1

System.out.println(isLeapYear);

should work just fine.

Incidentally, in

else if ((year % 4 == 0) && (year % 100 == 0))
    isLeapYear = false;

else if ((year % 4 == 0) && (year % 100 == 0) && (year % 400 == 0))
    isLeapYear = true;

the year % 400 part will never be reached because if (year % 4 == 0) && (year % 100 == 0) && (year % 400 == 0) is true, then (year % 4 == 0) && (year % 100 == 0) must have succeeded.

Maybe swap those two conditions or refactor them:

else if ((year % 4 == 0) && (year % 100 == 0))
    isLeapYear = (year % 400 == 0);