Solved

Define a JFrame subclass that has four vertically positioned buttons. The labels for the four buttons are Senior, Junior, Sophomore, and Freshman.

Posted on 2010-08-30
10
468 Views
Last Modified: 2012-05-10
I need to define a JFrame subclass that has four vertically positioned buttons. The labels for the four buttons are Senior, Junior, Sophomore, and Freshman. When a button is clicked, display a message that identifies which button is clicked, using JOptionPane. I do not know where to begin on this.
0
Comment
Question by:Rowley4
  • 5
  • 4
10 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 33557986
Use a JPanel with a BoxLayout. Add it to the JOptionPane

http://download.oracle.com/javase/tutorial/uiswing/layout/box.html
0
 
LVL 26

Expert Comment

by:ksivananth
ID: 33558312
Use BorderLayout, which is the default for JFrame, check this example http://www.roseindia.net/java/example/java/awt/borderlayout-example-in-java.shtml
0
 

Author Comment

by:Rowley4
ID: 33558672
Awesome link, very helpful!

So if this is my code, and I want to add a different content to each button when the button is pushed how would I do that?

import java.awt.Component;
import java.awt.Container;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;

public class BoxLayoutDemo {
    public static void addComponentsToPane(Container pane) {
        pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));

        addAButton("Freshman", pane);
        addAButton("Sophomore", pane);
        addAButton("Junior", pane);
        addAButton("Senior", pane);
    }

    private static void addAButton(String text, Container container) {
        JButton button = new JButton(text);
        button.setAlignmentX(Component.CENTER_ALIGNMENT);
        container.add(button);
    }

    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("BoxLayoutDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Set up the content pane.
        addComponentsToPane(frame.getContentPane());

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

0
Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

 
LVL 86

Expert Comment

by:CEHJ
ID: 33559649
>>add a different content to each button when the button is pushed

What sort of thing did you have in mind?
0
 

Author Comment

by:Rowley4
ID: 33560203
Something very simple like Freshman: First year of school. Sophomore: Second year of school. Junior: Third year of school. Senior: Forth and final year of school.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 33560220
Shown where though?
0
 

Author Comment

by:Rowley4
ID: 33560311
No specifications. Where/however would be the easiest.  A new window??
0
 
LVL 86

Accepted Solution

by:
CEHJ earned 500 total points
ID: 33560372
Try something like
import java.awt.Component;
import java.awt.Container;
import java.awt.event.ActionEvent;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.AbstractAction;
import javax.swing.JFrame;

public class BoxLayoutDemo {
    public static void addComponentsToPane(Container pane) {
        pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));

        addAButton("Freshman", "A freshman is...", pane);
        addAButton("Sophomore", "A sophomore is...", pane);
        addAButton("Junior", "A junior is...", pane);
        addAButton("Senior", "A senior is...", pane);
    }

    private static void addAButton(String text, String studentInfo, Container container) {
        JButton button = new JButton(new StudentAction(text, studentInfo));
        button.setAlignmentX(Component.CENTER_ALIGNMENT);
        container.add(button);
    }

    private static class StudentAction extends AbstractAction {
	private String studentInfo;

	public StudentAction(String buttonCaption, String studentInfo) {
	    super(buttonCaption);
	    this.studentInfo = studentInfo;
	}

	public void actionPerformed(ActionEvent e) {
	    JOptionPane.showMessageDialog(null, studentInfo);
	}
    }

    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("BoxLayoutDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Set up the content pane.
        addComponentsToPane(frame.getContentPane());

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

Open in new window

0
 

Author Comment

by:Rowley4
ID: 33560873
Absolutely perfect! You are phenomenal. Thank you so much!
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 33561307
:)
0

Featured Post

ScreenConnect 6.0 Free Trial

Check out the updates in one game-changing release, ScreenConnect 6.0, based on partner feedback. New features include a redesigned UI that improves session organization and overall user experience. See the enhancements for yourself!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
advertisement module in core php 4 162
mockito example issue 8 72
Apps blocked by Java 9 79
configure dependency in POM for new database 3 25
For beginner Java programmers or at least those new to the Eclipse IDE, the following tutorial will show some (four) ways in which you can import your Java projects to your Eclipse workbench. Introduction While learning Java can be done with…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question