interface « Event « Java Swing Q&A

1. How can you instantiate an Interface? stackoverflow.com

In Swing I'm using ActionListener or any other Listener interface. In general I can't create object of Interface. If I use new operator with any constructor name a object is created. I have a ...

2. Are Listener Interfaces redundant? coderanch.com

3. Listener, Component, Interface coderanch.com

Hi all, first question is it acceptable to have more than one mouseListener? 2nd.: Iam trying to prog. a simple game. In the game there are items.(a abstract class called Item). Item is really just the idea of an item, from it i subclass all the real items. -> spoon, screwdriver, flask and so on. Now i want to make them ...

4. Action Interface coderanch.com

5. Doubt on interface instantiation in ActionListener class coderanch.com

6. problem of MouseListener interface coderanch.com

7. ActionListener Interface? coderanch.com

You are welcome. On a side note, having a class implement the listener is not that a good idea. The code in the books is for illustration purposes only. If you have multiple event sources and a common listener class, you end up with multiple if else statements which can get messy. In real life, you can follow a simple rule ...

8. Implementing KeyListener interface coderanch.com

My simple text editor implements KeyListener interface. As already known, it contains three metods to override: public void keyTyped(KeyEvent event) { // Some code } public void keyPressed(KeyEvent event) { // Some code } public void keyReleased(KeyEvent event) { // Some code } In the implementation of keyTyped I put some code that indicates a text content has been changed (show ...

9. Problem wth ActionListener Interface coderanch.com

import java.awt.*; import java.awt.event.ActionEvent; import javax.swing.*; public class SendMail extends JFrame implements ActionListener { JLabel fromL, toL, subL, smtpL; JTextField fromT, toT, subT, smtpT, msg, output; JButton send, cancel; JScrollPane pane; public SendMail() { setTitle("Send Mail Example"); getContentPane().setLayout(null); setSize(700, 400); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //setVisible(true); fromL = new JLabel("From:"); getContentPane().add(fromL); fromL.setBounds(12,12,36,12); toL = new JLabel("To:"); getContentPane().add(toL); toL.setBounds(12,48,36,12); fromT = new JTextField(""); getContentPane().add(fromT); fromT.setBounds(100,12,200,20); toT ...