Question

I want to add an Image to the JFrame, the add( ) method is generating an error which says “cannot find symbol: method add(JLabel)” … How can I fix that?

** I still haven’t called the ImageLoading( ) method from the main method.

import javax.swing.*;

public class NetworkingGame {

NetworkingGame(){
    JFrame jfrm = new JFrame("Angry Painters");
    jfrm.setSize(800, 480);
    jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    jfrm.setVisible(true);

}

public void ImageLoading(){
    ImageIcon i = new ImageIcon("angry-painters.jpg");
    JLabel jl = new JLabel(i);
    add(jl); //The error is in this line
}

public static void main(String[] args) throws Exception{
    SwingUtilities.invokeLater(new Runnable(){

        @Override
        public void run(){
            new NetworkingGame();
        }
    });

   }
}

Answer 1

Visibility of JFrame jfrm is limited by constructor of NetworkingGame. So add method does not exist in NetworkingGame. Make your JFrame member of NetworkingGame.

public class NetworkingGame {
    private JFrame jfrm;

    NetworkingGame(){
        jfrm = new JFrame("Angry Painters");


    ...

        JLabel jl = new JLabel(i);
        jfrm.add(jl);