Table of contents
1.
Introduction
2.
Stepwise Process
3.
Example
4.
Frequently Asked Questions
4.1.
Is it possible to set a timer in Java Swing?
4.2.
What is a Java timer delay?
4.3.
What is a Java editor pane?
4.4.
What is a JScrollPane?
4.5.
Is the Timer in Java Swing considered a thread?
5.
Conclusion
Last Updated: Mar 27, 2024

Timer In Java Swing

Author Shiva
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Introduction

The term "timer" in itself is self-explanatory, and the Java language feature "Swing" is useful for developing window-based apps. As a result, we may create window-based cool timer applications utilizing Timer Class in Java Swing. There is a class called timer in Java Swing. In this article, we'll look at several instances of how to use this package.

Timer in Java Swing is a highly handy feature that allows us to set timers for certain actions to occur at specific intervals or to perform repeated operations while the timer is running. The timer in Java Swing is really useful. Simply call any action event connected with the timer, and the action will be carried out until the timer expires. Now it's up to you to figure out how the timer will end. It's also under your control. All you have to do now is specify the time in milliseconds. When the timer expires, the chosen action event will be automatically terminated.

Stepwise Process

The 4 simple steps for setting up a timer are as follows:

  • Adding a timer object to the scene.
  • Register one or more ActionListeners on it to be notified when the timer "goes off," with the actionPerformed(ActionEvent e) function containing the code for whatever task you need to be executed.
  • The number of milliseconds between timer firings can be specified. If you just want the timer to ring once, use setRepeats(false) on the timer.
  • Call the timer's start() function to start it. To halt it, press the stop button ().

Example

Here, we'll look at a Timer in Java Swing code example.

import java.awt.event.*;
import javax.swing.*;
public class SwingTimerDemo {
  static public void main(String [] args) {
    try{
      ActionListener ticktock = new ActionListener() {
      public void actionPerformed(ActionEvent evnt) {
        System.out.println("Swing timer started"); // The display of this message is essentially
        //an activity that is linked to the swing timer till it stops.
    }
  };
    Timer timer = new Timer(300 ,ticktock); //timer is ticking
    timer.setRepeats(false); //By doing so, we are requesting that the timer be turned off once.
    timer.start();
    Thread.sleep(3000);
    System.out.println("Timeout"); //timer ends and this message is displayed
    } catch (InterruptedException expn) {
    }
  }
}

Output:

Frequently Asked Questions

Is it possible to set a timer in Java Swing?

Class Timer in Java Swing is a utility class. Threads can use the Timer package to schedule a task that will be executed on a background thread in the future.

What is a Java timer delay?

In milliseconds, the delay parameter is used to set both the initial delay and the delay between event firing. The timer waits for the initial delay before firing its first ActionEvent to registered listeners once it has been started.

What is a Java editor pane?

A simple text editor window is created using the JEditorPane class. setContentType() and setText() are methods in this class. setContentType("text/plain"): This method is used to make plain text the content type.

What is a JScrollPane?

A scrollable view of a component is provided by a JScrollPane. Use a scroll pane to display a component that is huge or whose size can change dynamically when screen real estate is limited. Split panes and tabbed panes are two other containers for saving screen space.

Is the Timer in Java Swing considered a thread?

A single background thread corresponds to each Timer object and is used to sequentially perform all of the timer's responsibilities. Tasks on the timer should be completed swiftly. When a timer task takes an inordinate amount of time to finish, it "hogs" the task execution thread of the timer.

Conclusion

In this article, we have extensively discussed the Timer in Java Swing.  We hope that the above article will assist you in preparing for your upcoming interviews. Here are more articles for the rescue:

Graphics in java swing

Using Tooltip in Java Swing

JLabel in Java

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