It's crashing on the third line inside the do-while loop, and doesn't wait for my input:

 input = kb.nextInt();

Stack trace:

Exception in thread "main" java.util.NoSuchElementException

at java.util.Scanner.throwFor(Unknown Source)

at java.util.Scanner.next(Unknown Source)

at java.util.Scanner.nextInt(Unknown Source)

at java.util.Scanner.nextInt(Unknown Source)

at main.MainDriver.main(MainDriver.java:50)

Relevant code:

do
    {
        displayFullMenu();
        System.out.print("Selection: ");
        input = kb.nextInt();

        switch (input)
        {
        //Create new survey
        case 1:     currentSurvey = new Survey();
                    break;

        //Display current survey            
        case 2:     currentSurvey.display();
                    break;

        //Save current survey           
        case 3:     saveSurvey(currentSurvey);
                    break;

        //Load a survey
        case 4:     currentSurvey = loadSurvey();
                    break;

        //Modify a survey
        case 5:     currentSurvey.modify();
                    break;

        /*******************Test Functions*******************/

        //Create new test
        case 6:     currentSurvey = new Test();
                    break;

        //Display current test
        case 7:     currentSurvey.display();
                    break;

        //Save current test
        case 8:     saveSurvey(currentSurvey);
                    break;

        //Load a test
        case 9:     currentSurvey = loadTest();
                    break;

        //Modify a test
        case 10:    currentSurvey.modify();

        default:    System.out.println("Invalid choice. Please make a valid choice: ");
                    input = kb.nextInt();
                    System.out.println();
        }
    } while (input != 99);
    kb.close();

It crashes after I choose option 9. It saves the file correctly, then goes back to the top of the loop, and crashes at the previously mentioned line. I want it to ask for more input.

What gives?