Uses a method to get a valid integer from the user with catch block that catches the error and forces the loop to repeat. - Java Object Oriented Design

Java examples for Object Oriented Design:Method

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Description

Uses a method to get a valid integer from the user with catch block that catches the error and forces the loop to repeat.

Demo Code

import java.util.*;

public class GetInteger
{
    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args)
    {/*from  w  w  w  .j  a va 2  s . com*/
        System.out.print("Enter an integer: ");
        int i = GetInteger();
        System.out.println("You entered " + i);
    }

    public static int GetInteger()
    {
        while (true)
        {
            try
            {
                return sc.nextInt();
            } catch (InputMismatchException e) {
                sc.next();
                System.out.print("That's not " + "an integer. Try again: ");
            }
        }
    }
}

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