exception

package exceptionhandler;
import java.util.*;

public class ExceptionHandler {

    public static void main(String[] args) {

        // New scanner object for input
        Scanner keyboard = new Scanner(System.in);

        int numerator;      // holds the 1st value
        int denominator;    // holds the 2nd value
        int quotient;       // holds the integer division
        boolean error;      // flag to check for exceptions

        //do-while loop to ensure all input is valid
        do{
            //begin try-catch procedure
            try{

            /*sets flag to false at start of block,
                to re-prompt after invalid entry */
            error = false;

            // Get input from user and perform integer divsion.
            System.out.print("Please enter the numerator: ");
            numerator = keyboard.nextInt();

            System.out.print("Please enter the denominator: ");
            denominator = keyboard.nextInt();

            quotient = numerator / denominator;

            //prints the final output if the input is valid
            System.out.println();
            System.out.print("The result of integer division is: ");
            System.out.println(quotient);
            System.out.println();

            //flag set to true if exception found
            }catch(Exception e){

                error = true;

            //provides parameter for valid entry
            System.out.println("Please use only numeric values "
                                + "greater than 0");
            keyboard.nextLine();
            }
        //sets the condition for the loop
        }while(error);

    }
}