Question

This is my loop. It repeats endlessly if a non-int is entered. From what I can see, it seems like the exception isn’t cleared on the next run of the loop. Or because it takes the previous input and assigns it to menuChoice. How can I fix this?

while(!console.hasNextInt())
{
    try {
        menuChoice = console.nextInt();
    } catch(InputMismatchException e) {
        System.out.println("The selection you made is invalid.");
    }
}

Answer 1

don’t check for an int in the while loop, check for any input token:

while(console.hasNext()){
  if(console.hasNextInt()){
   try {
        menuChoice = console.nextInt();
    } catch(InputMismatchException e) {
        System.out.println("The selection you made is invalid.");
    }
  }else{
     //throw away non-ints
       console.next();
  }

}