Re: Applet code conversion...

Knute Johnson <>
Tue, 01 May 2012 08:44:04 -0700
On 5/1/2012 12:28 AM, linus wrote:

Lew ha scritto:

linus wrote:

How an applet code code can be trasformed to an application code ?
I thought that adding a "main" would be enough .... but it is not so
easy ! Is
there an example about this my problem ?

Did you try a web search?

I found this in five minutes or less:

FWIW, my search string was "Java combining an applet and application".

With the code

I get >>

:174: width is not public in java.awt.Component; cannot be accessed from
outside package
{ width = ( w >= 0 ? w : 300 ); }

:177: height is not public in java.awt.Component; cannot be accessed
from outside package
{ height = ( h >= 0 ? h : 200 ); }

Wath have I to do ?
Many thanks .


The code you provide does run as an application. Just compile it and
run it. It is however way too complex for the task it is attempting.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test extends JPanel implements ActionListener {
     private String state = "";

     public test() {
         setPreferredSize(new Dimension(400,300));

     public void actionPerformed(ActionEvent ae) {
         state = ae.getActionCommand();

     public void paintComponent(Graphics g) {
         if (state.equals("Line"))
         else if (state.equals("Oval"))
         else if (state.equals("Rect"))

     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 test t = new test();
                 JFrame f = new JFrame("test");
                 JPanel p = new JPanel();
                 JButton b = new JButton("Line");
                 b = new JButton("Oval");
                 b = new JButton("Rect");

I deliberately left out the random code because I felt like it.


Knute Johnson

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