Java GUI Programming Tips

Posted by on Apr 3, 2025 in Electronic Engineering | 0 comments

Java GUI FAQ

Inner Classes and Compilation

Q: After compiling a Java program called Mike, a Mike$1.class file appears. What’s this?

A: This indicates an anonymous inner class.

Painting Components

Q: How do you call the paint(Graphics g) method in a JComponent (like JPanel) to redraw it?

A: Indirectly, using the repaint() method.

Adding Multiple Buttons

Q: How can multiple buttons be added to a Frame and displayed?

A: Add a JPanel to the Frame, then add the buttons to the JPanel.

Handling Button Clicks

Q: When

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Java Multithreading: Concepts, Synchronization, and Communication

Posted by on Jan 20, 2025 in Electronic Engineering | 0 comments

What is a Thread?

In computer programming, a thread is a fundamental unit of execution within a process. It’s a lightweight subprocess that shares the same memory space as its parent process. Multiple threads can run concurrently within a single process, allowing for parallel execution of tasks.

Ways to Create Threads in Java

Implementing the Runnable Interface:

  • Create a class that implements the Runnable interface.
  • Implement the run() method, which contains the code to be executed by the thread.
  • Instantiate
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