Pascal (programming language)

Posted on 20.10 by roni setiawan | 0 komentar

Pascal (programming language)
Pascal is really a programming language that was first produced by Professor Niklaus Wirth,  
an associate from the International Federation of knowledge Processing (IFIP) in 1971. By taking the name of the French mathematician, Blaise Pascal, who first results in a calculating machine, Professor Niklaus Wirth made the Pascal language is really as a tool for teaching computer-programming concepts to students. In addition, Professor Niklaus Wirth Pascal also designed to complement the shortcomings of existing programming languages at that time.

EXAMPLE OF JAVA PROGRAM

Posted on 17.32 by roni setiawan | 0 komentar

EXAMPLE OF JAVA PROGRAM



EXAMPLE The following program provides examples of how the event handling in the window. Event will be active when the window measure is amended, diclose, active, and so on. Listener used in the example program is WindowListener, WindowFocusListener and WindowStateListener.





Sample Program Event Handling in Java
The following programs:
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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public class ClickMe2 extends JFrame {
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    private JButton tombol, btnExit;
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    public ClickMe2() {
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        super ("Event Handling");
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        Container container = getContentPane();
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        container.setLayout(new FlowLayout());
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        ClickListener cl = new ClickListener ();
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        tombol = new JButton ("Click Me!");
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        tombol.addActionListener(cl);
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        container.add(tombol);
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        btnExit = new JButton ("Exit");
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        btnExit.addActionListener(cl);
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        container.add(btnExit);
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        setSize (200,100);
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        setVisible (true);
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    }
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    public static void main (String arg[]) {
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        ClickMe2 test = new ClickMe2();
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        test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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    }
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    //inner class
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    private class ClickListener implements ActionListener {
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        public void actionPerformed (ActionEvent e) {
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            if (e.getSource() == tombol) {
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                JOptionPane.showMessageDialog(null, "You click me again, guys !!!");
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            } else if (e.getSource() == btnExit){
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                JOptionPane.showMessageDialog(null, "See you, guys !");
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                System.exit(0);
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            }
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        }
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    }
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}

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