Answer:
import java.util.Scanner;
public class LabProgram {
    public static void main(String[] args) {
        Scanner scnr = new Scanner(System.in);
        int inputYear;
        boolean isLeapYear;
        isLeapYear = false;
        inputYear = scnr.nextInt();
        // If a year is divisible by 400,  then it is a leap year
        if (inputYear % 400 == 0)
            isLeapYear = true;
        // If a year is divisible by 100,  then it is not a leap year
        if (inputYear % 100 == 0)
            isLeapYear = false;
        // If a year is divisible by 4,  then it is a leap year
        if (inputYear % 4 == 0)
            isLeapYear = true;
        if(isLeapYear)
            System.out.println(inputYear + " is a leap year.");
        else
            System.out.println(inputYear + " is not a leap year.");
    }
}
Explanation:
If a year is divisible by 400,  then set the boolean isLeapYear to true. If a year is divisible by 100,  then set the boolean isLeapYear to false. If a year is divisible by 4,  then set the boolean isLeapYear to true.
Check if isLeapYear is true, then print that it is a leap year. Otherwise, print that it is not a leap year.
Output:
1712
1712 is a leap year.