Source code

/*
For example:

We have in Jabaco created a little program.
Form1 have a Height of 280 and a Width of 360.
In there we have drawn a Button on the position
150 from Top and 60 from Left. It have a Height of 100
and a Width of 250.
Then we have double-clicked on the Button "Command1"
and write in the command field:

Public Sub Command1_Click()
   System.out.println("Hi together!")
End Sub

Here the similar in Java:

*/

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

public class BasicJava extends JFrame implements ActionListener {
  private static JFrame Form1;
  private static JButton Command1;

  public static void main(String[] args) {
    Form1 = new JFrame("Form");
//    Form1.setSize(360,280);  // this would create the Frame to
//                             // that size, but we need the area
//                             // inside the Frame.
    JPanel p = new JPanel();   // And this is for the area size.
    p.setLayout(null);
    Command1 = new JButton("Command1");
    Command1.setBounds(60,150,250,100);
    Command1.addActionListener(new BasicJava());
    p.add(Command1);
    p.setPreferredSize(new Dimension(360,280));
    Form1.add(p);
    Form1.pack();
    Form1.setVisible(true);
    WindowListener l = new WindowAdapter()
    {
      public void windowClosing(WindowEvent we)
      {
        System.exit(0);
      }
    };
    Form1.addWindowListener(l);
  }

  public void actionPerformed(ActionEvent event) {
    if (event.getSource() == Command1) {
      Command1_Click();
    }
  }

  /* All things before have to be generated atomatically
     Now there comes the only part you will see as text in the IDE.
     But with BASIC-syntax. And later directly compiled to .class-files,
     so that people who have only a JRE and not the full JDK, can compile
     it.
  */

  public void Command1_Click() {
    System.out.println("Hi together!");
  }

}