import java.util.Scanner;
import java.util.InputMismatchException;

/**
 * This class illustrates what happens when an unchecked exception
 * occurs. An unchecked exception is an exception that usually cannot
 * be anticipated and/or recovered from. In Java, you do not have
 * to handle an unchecked exception.
 * 
 * @author alchambers
 * @version sp18
 */
public class UncheckedException{
    /**
     * Trigger an unchecked exception by typing a String instead
     * of an integer.
     */
    private static void runtimeException(){
        System.out.println("Inside runtimeException()");
        Scanner scan = new Scanner(System.in);
        System.out.print("How old are you? ");
        int age = scan.nextInt();        
    }

    /**
     * Calls the runtimeException() method
     */
    private static void method2(){
        System.out.println("Inside method2()");       
        runtimeException();
        System.out.println("Inside method2()");
    }

    /**
     * Calls method2()
     */
    private static void method1(){
        System.out.println("Inside method1()");
        method2();
        System.out.println("Inside method1()");
    }

    public static void main(String[] args){
        method1();
    }
}