Create an Applet which take name and address of a student and convert it into upper case.

//customize this

import java.applet.Applet;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
* Class CaseConverter - A simple applet that takes input from a text field
* and converts to upper or lower case in response to user button selection.
* Works well with a width of 250 and height of 100. It uses the default
* layout (FlowLayout) so different sizing will alter the appearance.
*
* @author Bruce Quig
* @version 08/07/1999
*/

public class CaseConverter extends Applet implements ActionListener
{
// instance variables - replace the example below with your own
private TextField inputField;
private final String UPPERCASE = "UPPERCASE";
private final String LOWERCASE = "lowercase";
private final String CLEAR = "Clear";


/**
* Called by the browser or applet viewer to inform this Applet that it
* has been loaded into the system. It is always called before the first
* time that the start method is called.
*/
public void init()
{
// provide any initialisation necessary for your Applet
add(new Label("CASE CONVERTER APPLET"));
add(new Label("Enter a String"));
inputField = new TextField(16);
add(inputField);
Button uppercase = new Button(UPPERCASE);
uppercase.addActionListener(this);
add(uppercase);
Button lowercase = new Button(LOWERCASE);
lowercase.addActionListener(this);
add(lowercase);
Button clear = new Button(CLEAR);
clear.addActionListener(this);
add(clear);
}


/**
* Returns information about this applet.
* An applet should override this method to return a String containing
* information about the author, version, and copyright of the Applet.
*
* @return a String representation of information about this Applet
*/
public String getAppletInfo()
{
// provide information about the applet
return "Title: Case Converter \nAuthor: Bruce Quig \nA simple applet that converts text to upper or lower case. ";
}


/**
* ActionListener Interface method.
* Called when action events occur with registered components that
* can fire action events.
* @param ae the ActionEvent object created by the event
*/
public void actionPerformed(ActionEvent ae)
{
String command = ae.getActionCommand();
// if clear button pressed
if(CLEAR.equals(command))
inputField.setText("");
// uppercase button pressed
else if(UPPERCASE.equals(command))
inputField.setText(inputField.getText().toUpperCase());
// lowercase button pressed
else if(LOWERCASE.equals(command))
inputField.setText(inputField.getText().toLowerCase());
}
}