import cs1.Keyboard;public class leapyear{ public static void main (String[] args) { int year; String redo = new String ("y"); System.out.println ("Justin's Leap year Finder"); while (redo.equalsIgnoreCase("y")) { System.out.print ("Please Enter a year: "); year = Keyboard.readInt(); if (year >= 1582) { if (year <= 9999) { if (year % 4 == 0) { if (year % 100 != 0) System.out.println (year + " is a Leap Year!!!"); else if (year % 400 == 0) System.out.println (year + " is a Leap Year!!!"); else System.out.println (year + " is not a Leap year."); } else System.out.println(year + " is not a leap Year."); } else System.out.println ("Not in your lifetime!"); } else System.out.println ("That was before leap years were invented..."); System.out.print ("Enter another year? y/n: "); redo = Keyboard.readString(); } }}