Beginner Scoring program button development in Java [migrated]

Posted by A.G. on Programmers See other posts from Programmers or by A.G.
Published on 2012-10-17T22:50:07Z Indexed on 2012/10/17 23:19 UTC
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I'm trying to add a "green team" to an example scoring GUI I found online. For some reason, the code compiles, but it runs with only the original two teams. I've tried playing around with the sizes/locations somewhat clumsily, and since no change was observed with these modications (NO change at ALL), I admit that I must be missing some necessary property or something. Any help? Here's the code:

import javax.swing.*;

import java.awt.Color;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;


public class ButtonDemo_Extended3 implements  ActionListener{



    // Definition of global values and items that are part of the GUI.

    int redScoreAmount = 0;

    int blueScoreAmount = 0;
    int greenScoreAmount = 0;



    JPanel titlePanel, scorePanel, buttonPanel;

    JLabel redLabel, blueLabel,greenLabel, redScore, blueScore, greenScore;

    JButton redButton, blueButton, greenButton,resetButton;



    public JPanel createContentPane (){



        // We create a bottom JPanel to place everything on.

        JPanel totalGUI = new JPanel();

        totalGUI.setLayout(null);



        // Creation of a Panel to contain the title labels

        titlePanel = new JPanel();

        titlePanel.setLayout(null);

        titlePanel.setLocation(0, 0);

        titlePanel.setSize(500, 500);

        totalGUI.add(titlePanel);



        redLabel = new JLabel("Red Team");

        redLabel.setLocation(300, 0);

        redLabel.setSize(100, 30);

        redLabel.setHorizontalAlignment(0);

        redLabel.setForeground(Color.red);

        titlePanel.add(redLabel);



        blueLabel = new JLabel("Blue Team");

        blueLabel.setLocation(900, 0);

        blueLabel.setSize(100, 30);

        blueLabel.setHorizontalAlignment(0);

        blueLabel.setForeground(Color.blue);

        titlePanel.add(blueLabel);

    greenLabel = new JLabel("Green Team");

        greenLabel.setLocation(600, 0);

        greenLabel.setSize(100, 30);

        greenLabel.setHorizontalAlignment(0);

        greenLabel.setForeground(Color.green);

        titlePanel.add(greenLabel);



        // Creation of a Panel to contain the score labels.

        scorePanel = new JPanel();

        scorePanel.setLayout(null);

        scorePanel.setLocation(10, 40);

        scorePanel.setSize(500, 30);

        totalGUI.add(scorePanel);



        redScore = new JLabel(""+redScoreAmount);

        redScore.setLocation(0, 0);

        redScore.setSize(40, 30);

        redScore.setHorizontalAlignment(0);

        scorePanel.add(redScore);

    greenScore = new JLabel(""+greenScoreAmount);

        greenScore.setLocation(60, 0);

        greenScore.setSize(40, 30);

        greenScore.setHorizontalAlignment(0);

        scorePanel.add(greenScore);



        blueScore = new JLabel(""+blueScoreAmount);

        blueScore.setLocation(130, 0);

        blueScore.setSize(40, 30);

        blueScore.setHorizontalAlignment(0);

        scorePanel.add(blueScore);



        // Creation of a Panel to contain all the JButtons.

        buttonPanel = new JPanel();

        buttonPanel.setLayout(null);

        buttonPanel.setLocation(10, 80);

        buttonPanel.setSize(2600, 70);

        totalGUI.add(buttonPanel);



        // We create a button and manipulate it using the syntax we have

        // used before. Now each button has an ActionListener which posts 

        // its action out when the button is pressed.

        redButton = new JButton("Red Score!");

        redButton.setLocation(0, 0);

        redButton.setSize(30, 30);

        redButton.addActionListener(this);

        buttonPanel.add(redButton);



        blueButton = new JButton("Blue Score!");

        blueButton.setLocation(150, 0);

        blueButton.setSize(30, 30);

        blueButton.addActionListener(this);

        buttonPanel.add(blueButton);

    greenButton = new JButton("Green Score!");

        greenButton.setLocation(250, 0);

        greenButton.setSize(30, 30);

        greenButton.addActionListener(this);

        buttonPanel.add(greenButton);



        resetButton = new JButton("Reset Score");

        resetButton.setLocation(0, 100);

        resetButton.setSize(50, 30);

        resetButton.addActionListener(this);

        buttonPanel.add(resetButton);



        totalGUI.setOpaque(true);

        return totalGUI;

    }



    // This is the new ActionPerformed Method.

    // It catches any events with an ActionListener attached.

    // Using an if statement, we can determine which button was pressed

    // and change the appropriate values in our GUI.

    public void actionPerformed(ActionEvent e) {

        if(e.getSource() == redButton)

        {

            redScoreAmount = redScoreAmount + 1;

            redScore.setText(""+redScoreAmount);

        }

        else if(e.getSource() == blueButton)

        {

            blueScoreAmount = blueScoreAmount + 1;

            blueScore.setText(""+blueScoreAmount);

        }
    else if(e.getSource() == greenButton)

        {

            greenScoreAmount = greenScoreAmount + 1;

            greenScore.setText(""+greenScoreAmount);

        }

        else if(e.getSource() == resetButton)

        {

            redScoreAmount = 0;

            blueScoreAmount = 0;
        greenScoreAmount = 0;

            redScore.setText(""+redScoreAmount);

            blueScore.setText(""+blueScoreAmount);
        greenScore.setText(""+greenScoreAmount);

        }

    }



    private static void createAndShowGUI() {



        JFrame.setDefaultLookAndFeelDecorated(true);

        JFrame frame = new JFrame("[=] JButton Scores! [=]");



        //Create and set up the content pane.

        ButtonDemo_Extended demo = new ButtonDemo_Extended();

        frame.setContentPane(demo.createContentPane());



        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.setSize(1024, 768);

        frame.setVisible(true);

    }



    public static void main(String[] args) {

        //Schedule a job for the event-dispatching thread:

        //creating and showing this application's GUI.

        SwingUtilities.invokeLater(new Runnable() {

            public void run() {

                createAndShowGUI();

            }

        });

    }

}

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