AWT_Counter

import java.awt.*;
import java.awt.event.*;

public class AWT_Counter {

    Frame f;
    Label counter;
    TextField count_display;
    Button c_button;
    int count = 0;

    AWT_Counter() {

        f = new Frame("AWT Counter");
        f.setSize(300, 100);
        f.setLayout(null);
        f.setVisible(true);
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent wEvent) {
                System.exit(0);
            }
        });

        counter = new Label("Counter");
        counter.setBounds(20, 40, 50, 30);
        f.add(counter);

        count_display = new TextField();
        count_display.setText(Integer.toString(count));
        count_display.setBounds(100, 40, 100, 30);
        f.add(count_display);
        count_display.setEditable(false);

        c_button = new Button("Count");
        c_button.setBounds(220, 40, 50, 30);
        c_button.addActionListener(new ButtonClickListener());
        f.add(c_button);
    }

    private class ButtonClickListener implements ActionListener {

        @Override
        public void actionPerformed(ActionEvent e) {
            count++;
            count_display.setText(Integer.toString(count));

        }

    }

    public static void main(String[] args) {

        AWT_Counter demo = new AWT_Counter();
    }

}