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Swing Applet - dialler example
Extending Graphics in Java example from a Well House Consultants training course
More on Extending Graphics in Java [link] Source code: Dialapplet.java Module: J902
import java.awt.*; import javax.swing.*; import java.awt.event.*; public class Dialapplet extends JApplet { static String PhoneNumber = ""; JLabel Result; public void init () { new DialApplet(); } public DialApplet () { Container cp = getContentPane(); cp.setLayout(new BorderLayout()); // Upper panel - responses JPanel upper = new JPanel(); upper.setLayout(new GridLayout(3,1)); upper.add(new JLabel("Dialer Example")); upper.add(Result = new JLabel("")); JButton OK; upper.add(OK = new JButton("OK")); OK.addActionListener( new ActionListener() // Definition through an inner class ============================= { public void actionPerformed(ActionEvent e) { // Following inappropriate for an Applet! // System.out.println("Called "+PhoneNumber); // System.out.println("Dialling Completed"); // System.exit(0); } } // End of inner class definition ================================= ); // Lower panel - keypad JPanel lower = new JPanel(); lower.setLayout(new GridLayout(4,3)); String [] Phone = {"7","8","9","4","5","6", "1","2","3","*","0","#"}; for (int i=0;i<Phone.length;i++) { JButton current; lower.add(current = new JButton(Phone[i])); current.addActionListener( new ActionListener() // Definition through an inner class ============================= { public void actionPerformed(ActionEvent e) { PhoneNumber = PhoneNumber + e.getActionCommand(); Result.setText(PhoneNumber); } } // End of inner class definition ================================= ); } cp.add(upper,BorderLayout.NORTH); cp.add(lower,BorderLayout.SOUTH); // cp.pack(); } } Learn about this subject
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