Using objects from Java packages

• Suppose that you want to use two Buttons in an applet. The Button class is in the package java.awt.  java.awt.Button b1 = new java.awt.Button( “label” );All objects created this way are represented internally as references.

• Or you can more succintly use the import statement to open the context of the package java.awt:

import java.awt.*;

public class MyApplet extends java.applet.Applet

{ public void init ( )

{ Button b1 = new Button ( “start”);

Button b2 = new Button ( “stop”);

. . .  b1.setLabel ( “pause”);

}

}

This calls the class constructor method Button to create the new instance and initialize the label .

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