Validating an input is a number and is greater then 99.

Question:

Design an algorithm that prompts the user to enter a number that is greater than 99 and validates the input.

Code:

import java.util.*;
 
public class ReadInt {
 
   public static void main(String[] args) {
 
      Scanner sc = new Scanner(System.in);
      int i=0;
 
      try {
 
         System.out.print("Enter Integer: ");
         i = sc.nextInt();
         System.out.println("You entered: " + i);
 
         if(i > 99){
            System.out.println(i + " is greater than 99");
         } else {
            System.out.println(i + " is NOT greater than 99");
         }
 
      } catch (InputMismatchException e) {
         System.out.println("You did not enter a number.");
      }
 
   }
}

Output:

$ java ReadInt
Enter Integer: 55
You entered: 55
55 is NOT greater than 99

$ java ReadInt
Enter Integer: 100
You entered: 100
100 is greater than 99

$ java ReadInt
Enter Integer: foo
You did not enter a number.