Solved

This Jpanel isn't named how to here

Posted on 2004-04-02
1
223 Views
Last Modified: 2010-03-31
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;

public class MyClass4 extends JPanel {

  JLabel jLabel1;  
  ArrayList myArrayList = new ArrayList();

public MyClass4() {

     // Call it like this . . .
    jLabel = JLabel();

    setLayout(new GridLayout(0,3)); // Setting MY layout...
 
    add(jLabel1);  
    jLabel1.setText("Defensive Moves");
    setBackground(Color.white);

    looprow:
    for (int row=0; row<20; row++) {
    for(int col=0; col<3; col++) {
    int n=(20*col+row+1);
    if (n>50) break looprow;
    JCheckBox check = new JCheckBox("" + n);

    myArrayList.add(check);
    add(check);
    }
    }
}
}


 YourPanel.addMouseListener(new MouseAdapter() {
  public void mouseEntered(MouseEvent e) {
  YourPanel.setBackground(Color.blue);
  }
  public void mouseClicked(MouseEvent e) {
  YourPanel.setBackground(Color.red);
  }
  public void mouseExited(MouseEvent e) {
  YourPanel.setBackground(Color.white);
  }
  });
0
Comment
Question by:Drop_of_Rain
1 Comment
 
LVL 15

Accepted Solution

by:
Javatm earned 100 total points
ID: 10746628
You need to use this :
 
  YourPanel.addMouseListener(new MouseAdapter() {
  public void mouseEntered(MouseEvent e) {
  YourPanel.setBackground(Color.blue);
  }
  public void mouseClicked(MouseEvent e) {
  YourPanel.setBackground(Color.red);
  }
  public void mouseExited(MouseEvent e) {
  YourPanel.setBackground(Color.white);
  }
  });

On the main program or the main JFrame on which you will
call your panel (MyClass) :

  MyClass4 x = new MyClass4();

  x.addMouseListener(new MouseAdapter() {
  public void mouseEntered(MouseEvent e) {
  YourPanel.setBackground(Color.blue);
  }
  public void mouseClicked(MouseEvent e) {
  YourPanel.setBackground(Color.red);
  }
  public void mouseExited(MouseEvent e) {
  YourPanel.setBackground(Color.white);
  }
  });

Hope that helps . . .
Javatm
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
simple java question 3 59
Maven Project: Hibernate Dependencies Conflict 10 38
Glassfish admin console not working 1 32
Java basic valueOf question 1 29
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
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 about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:

860 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