Validation

[Johnny2009]

Hi all, im trying to do a little validation here. I have a switch statement that takes in a int from the user but I want to not allow any characters. I did the try catch and it did work but then my program just ends. Any thoughts?

public class MenuClass
{
  
  static Scanner console = new Scanner(System.in);
  static String name, address, city, state, zip, school, phone, email;
  public MenuClass()
  {
  }
  
  public void mainMenu()
  {
    int numChoice;
  
    try{
    System.out.println("     MAIN MENU");
    System.out.println("1. Enter Data");
    System.out.println("2. Display Data");
    System.out.println("3. Edit Data");
    System.out.println("4. Delete Data");
    System.out.println("5. Read File");
    System.out.println("6. Save to File");
    System.out.println("7. Select Number Choice 1-7");
    numChoice = console.nextInt();
   
    switch (numChoice){
      case 1: enterData();
      break;
      case 2: display();
      break;
      case 3: edit();
      break;
      case 4: delete();
      break;
      case 5: readFile();
      break;
      case 6: save();
      break;
      default:
        System.out.println("Invalid Choice...");
        System.out.println("RESTARTING...");
        mainMenu();
        break;
    }
    }
    catch(InputMismatchException exception){
      System.out.println("Please enter valid choice");
      }
    catch(Exception exception)
    {
      exception.printStackTrace();
    }
   }

[JavaAdviser]

How about catching the exception right where it happens. You could assign an initial value to numChoice, catch the exception and then it will automatically enter the default case.

[Johnny2009]

hmm i see what your saying, i just dont know how to do it :\. The try catch i pretty much copied and messed around with until i got it working. Not really sure the in and outs of it to make it work