Java Applet Not Running

[kahaj]

For some reason, my code won't compile. I don't understand why it won't. I'm new to Java & even newer to JApplets.

//AppletDrawingMain.java

import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.Font;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JApplet;

public class AppletDrawingMain extends JApplet
{
    public static void main(String[] args)
    {
        //create frame
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //declaring & adding dBoard to frame
        DrawingBoard dBoard = new DrawingBoard();
        frame.add(dBoard); 

        //frame paramaters
        frame.setSize(800, 800);
        frame.setVisible(true);
    }
}

//DrawingBoard.java

import java.awt.Font;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;
import javax.swing.JApplet;

//package drawinginapplet;

public class DrawingBoard extends JApplet
{
    public void paintComponent(Graphics g)
    {
        //call to superclass
        super.paintComponent(g);

        //upper left "Hello World" declaration
        g.setFont( new Font("Comic Sans", Font.PLAIN, 12) );
        g.drawString("Hello World", 0, 0);

        //lower right "I am here!" declaration
        g.setFont(new Font("Impact", Font.PLAIN, 10) );
        g.drawString("I am here!", 775, 800);

        //square with a black border and red fill
        g.setColor(Color.red);
        g.drawRect(15, 15, 50, 50);
        g.fillRect(15, 15, 50, 50);

        //rectangle with a blue border and no fill
        g.setColor(Color.white);
        g.drawRect(50, 50, 60, 130);
        g.fillRect(50, 50, 60, 130);

        //circle with a grey border and blue fill
        g.setColor(Color.blue);
        g.drawOval(80, 130, 30, 30);
        g.fillOval(80, 130, 30, 30);

        //oval with a pink border and no fill
        g.setColor(Color.PINK);
        g.drawOval(130, 150, 75, 25);

        //arch with a green border and yellow fill
        g.setColor(Color.yellow);
        g.fillArc(220, 220, 75, 75, 0, 180);
        g.drawArc(220, 220, 75, 75, 0, 180);
    }
}

[r035198x]

Learn to read the error messages that the compiler gives you. They tell you the reason why the code doesn't compile. What error messages did you get?

[kahaj]

Ahhh!

When I had the following code,

//DrawingBoard.java

import java.applet.*;
import java.awt.Font;
import java.awt.Color;
import java.awt.Graphics;
//import java.awt.Graphics2D;
//import javax.swing.JPanel;
//import javax.swing.JApplet;

public class DrawingBoard extends Applet
{
    public void init()
    {
        setSize(500,550);
        setVisible(true);
    }

    public void paint(Graphics g)
    {
        //call to superclass
        //super.paintComponent(g);

        //upper left "Hello World" declaration
        g.setFont( new Font("Comic Sans", Font.PLAIN, 12) );
        g.drawString("Hello World", 0, 0);

        //lower right "I am here!" declaration
        g.setFont(new Font("Impact", Font.PLAIN, 10) );
        g.drawString("I am here!", 775, 800);

        //square with a black border and red fill
        g.setColor(Color.black);
        g.drawRect(15, 15, 50, 50);
        g.setColor(Color.red);
        g.fillRect(16, 16, 49, 49);

        //rectangle with a blue border and no fill
        g.setColor(Color.blue);
        g.drawRect(50, 50, 60, 130);

        //circle with a gray border and blue fill
        g.setColor(Color.gray);
        g.drawOval(80, 130, 30, 30);
        g.setColor(Color.blue);
        g.fillOval(81, 131, 29, 29);

        //oval with a pink border and no fill
        g.setColor(Color.PINK);
        g.drawOval(130, 150, 75, 25);

        //arch with a green border and yellow fill
        g.setColor(Color.green);
        g.fillArc(220, 220, 75, 75, 0, 180);
        g.setColor(Color.yellow);
        g.drawArc(219, 219, 75, 75, 0, 180);
    }
}

and attempted to debug it, it told me that there was no main class. I added this:

    public static void main(String[] args)
    {

    }

I honestly didn't think that this was right, but was just trying out different things to get this applet running. It said that the build was successful, but it never displayed the applet. I am completely confused at this point.

[r035198x]

You are running the Applet as a normal Java application. Read the Applets tutorial from Sun to find out how to run Applets.

[kahaj]

Yeah, I figured that out. Sorry for the bother & thanks. :)