Java Programming

The R in RGB stands for Right.

You can create an applet by extending the class JFrame.

Unlike application programs, when you compile a Java applet, no .class file is produced.

The class Container is the superclass of all the classes designed to provide a GUI.

You must import the package javax.swing in order to use the methods in the class Font.

You can use the methods Background and Foreground to set the background and foreground colors of a component.

Applets use the init method in place of constructors to initialize various GUI components and data members.

Applets do not have titles.

The paint method is used to get data from the user.

The class Graphics provides methods for drawing items such as lines, ovals, and rectangles on the screen.

An applet invokes the methods start, init, stop, paint, and destroy in sequence.

The class JComponent is part of the package javax.swing.

You can create instances of Color by mixing red, green, and blue hues in various proportions.

JCheckBox is a subclass of the abstract class ToggleButton.

JTextAreas can be used to display multiple lines of text.

Like Java application programs, Java applets have the method main.

A Java applet is the same as a Java GUI application program.

You can close an applet by closing the HTML document in which the applet is embedded.

The class Graphics is an abstract class.

You cannot convert a GUI application into an applet.