Help needed with 'while' loop please

Question

Problem: When a non-integer is entered, the console displays "Enter a wager > java.util.InputMismatchException" intermitentlly.
Here is the source codes
===================
import java.util.Scanner;
public class Test {
     private static int bankBalance = 1000;
     public static void main(String []args) {
          System.out.println("You entered: " + wager());
      Ask user for a wager, which must not be greater than 'bankBalance' and
      must be a valid Integer. Continue asking until a valid wager is entered.
     private static int wager() {
          Scanner scanner = new Scanner(System.in);
          int input = bankBalance + 1;
          boolean isValid = false;
          while( (input > 1000) || (isValid == false) ) {
               try {
                    System.out.print("Enter a wager > ");
                    input = scanner.nextInt();
                    isValid = true;
               } catch(java.util.InputMismatchException im_exc) {
                    System.out.println(im_exc.toString());
          return input;
}

Answer 1

It would help if you put aside your code, and wrote out some pseudo-code first so that you understand the steps you will need to take. for example
get input from user
set counter to first number entered
while counter less than/ equal to second number
      check if number is even
           if even, add to even_sum
           else output counter, along with its square
      increment counter by one
end while
output sum of evensthat block, when coded, will solve 3 of the problems, the other 2 will require separate loops
Good Luck