CODEWITHSUNDEEP
javaswingappletjframe
WebGL3D
WebGL3D

Reputation: 454

How can I run applet code after calling MainFrame?

How can I run some code after calling MainFrame with Java Applets? Is this possible?

Frame frame = new MainFrame(new ClassName(),256,256);
System.out.println("This won't print!");

Can someone explain how I can get that to print after calling MainFrame?

Upvotes: 0

Views: 418

Answers (2)

Code-Apprentice
Code-Apprentice

Reputation: 83587

As a simple example, take a look at this code:

package mainframe;

import javax.swing.JFrame;

/**
 *
 * @author codeguru <[email protected]>
 */
public class MainFrame extends JFrame {

    public static void main(String[] args) {
        JFrame frame = new MainFrame();

        System.out.println("This prints.");
    }
}

This gives the expected output:

This prints.

From your original code, I don't see where the applet is that you refer to in your question's title. In order to help you, we need to know more about MainClass and ClassName. These look like custom classes which you wrote or are part of the example you are studying.

Upvotes: 1

S.L. Barth is on codidact.com
S.L. Barth is on codidact.com

Reputation: 8255

Java does not have a MainFrame class in it's standard libraries.

What you are probably seeing is a program that can run as both an Applet and an application.
When running as an application, the main GUI class is apparently called MainFrame, and the line you quote is where it is constructed. Note that it receives an instance of class ClassName; that's probably where the logic of the program resides (the model).

Your System.out.println will be called after the MainFrame(...) constructor is done.
Only if the system is exited (by a call to System.exit(int) for example) before it can return from the constructor call, will your System.out.println not be reached.

Upvotes: 1

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