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Thread: Confused with homework

  1. #1
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    Default Confused with homework

    Hi there.. I'm new to Java and don't fully understand yet how to call methods from other classes. If somebody could take a look at my code and offer suggestions, it'd be much appreciated. Here are my classes, Multiply and MultiplyTest:

    __________________________________________________ _______

    // Ch06_Assignment: MultiplyTest.java
    // Author: Joshua Nelson
    // Date: 3/5/2013

    public class MultiplyTest
    {
    public static void main( String[] args )
    {
    Multiply myMultiply = new Multiply();

    myMultiply.createQuestion();
    myMultiply.quiz();
    myMultiply.checkResponse(response);
    } // end main
    } // end class:MultiplyTest

    __________________________________________________ _______

    // Ch06_Assignment: Multiply.java
    // Author: Joshua Nelson
    // Date: 3/5/2013
    import java.util.Scanner;
    import java.util.Random;

    public class Multiply
    {
    public static int product;

    public static int createQuestion()
    {
    Random randomNumbers = new Random();
    int num1 = randomNumbers.nextInt(9);
    int num2 = randomNumbers.nextInt(9);
    product = num1 * num2;
    System.out.printf( "How much is %d times %d?", num1, num2 );
    return product;
    } // end method:createQuestion

    public static void checkResponse( int guess )
    {
    if (guess != product)
    System.out.println( "No. Please try again" );
    else
    {
    System.out.println( "Very Good!" );
    createQuestion();
    } // end else
    } // end method:checkResponse

    public static int quiz()
    {
    createQuestion();
    Scanner input = new Scanner( System.in );
    System.out.println( "Enter your answer (-1 to exit):" );
    int response = input.nextInt();
    while (response != -1)
    {
    checkResponse(response);
    System.out.println( "Enter your answer (-1 to exit):" );
    response = input.nextInt();
    } // end while
    return response;
    } // end method:quiz
    } // end class:Multiply


  2. #2
    Super Moderator curmudgeon's Avatar
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    Default Re: Confused with homework

    You will want to tell us what the current code is supposed to be doing and what problems you are having with it. My experience here is that we're usually terrible at mind reading.

  3. #3
    Member Zyrion's Avatar
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    Default Re: Confused with homework

    Please format your code appropriately with tags so we can look at your code without having a headache.

    [C0DE=java]
    <your code>
    [/CODE]

  4. #4
    Junior Member Robertgif's Avatar
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    Default Re: Confused with homework

    What don't you understand about calling methods? Is there a specific issues you have with them, or a specific issue?
    "You should not let technology (or method) drive your design, but make your design drive the technology".

    Always learning!

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