Source Code : Phone Book

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Phone Book

/*
 * PhoneBook.java 
 * Copyright (c) 2000 Sun Microsystems, Inc. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 */

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.TextBox;
import javax.microedition.lcdui.TextField;
import javax.microedition.midlet.MIDlet;

/**
 */
public class PhoneBook extends MIDlet implements CommandListener {

  private Command exitCommand; // The exit command

  private Command nextCommand;

  private Command newCommand;

  private TextBox t1;

  private TextBox t;

  private Display display; // The display for this MIDlet

  private String _name;

  private String _number;

  public PhoneBook() {
    display = Display.getDisplay(this);
    nextCommand = new Command("Next", Command.SCREEN, 2);
    exitCommand = new Command("Exit", Command.SCREEN, 2);
    newCommand = new Command("NewNumber", Command.SCREEN, 2);

  }

  public void startApp() {
    t = new TextBox("Name", "", 256, TextField.ANY);
    t.addCommand(nextCommand);
    t.setCommandListener(this);

    t1 = new TextBox("Number", "", 256, TextField.PHONENUMBER);
    t1.addCommand(newCommand);
    t1.addCommand(exitCommand);
    t1.setCommandListener(this);

    display.setCurrent(t);

  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) {
  }

  public void commandAction(Command c, Displayable s) {
    if (c == exitCommand) {
      _name = t.getString();
      _number = t1.getString();
      System.out.println("Name = " + t.getString() + ", Number = "
          + t1.getString());
      destroyApp(false);
      notifyDestroyed();
    }
    if (c == nextCommand) {
      t1.setString(" ");
      display.setCurrent(t1);
    }
    if (c == newCommand) {
      display.setCurrent(t);
      _name = t.getString();
      _number = t1.getString();
      System.out.println("Name = " + t.getString() + ", Number = "
          + t1.getString());
      t.setString(" ");
    }

  }

}

           
       

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