Session G3: Java's Abstract Windowing Toolkit, Continued

In this laboratory session, you will continue your investigations into Java's Abstract Windowing Toolkit. In a previous laboratory, you considered how to build windows, provide output for the user, and react to buttons. In this laboratory, you will focus on getting input from the user. The goals of this laboratory are to

• refine your understanding of Java's AWT;
• introduce some of the AWT's input mechanisms;
• refine your understanding of the String class; and
• consider some error-handling mechanisms.

Your instructor will tell you which of the proposed experiments you are to perform.

Prerequisite skills:

• Objects and classes in Java
• Applets and graphics (optional)
• Inheritance and interfaces
• Java's numeric classes, such as java.lang.Integer
• Exceptions and exception handling
• AWT basics

Note that many of these skills are optional if you're willing to accept ``I'm not sure what this means, but I can just copy it'' rather than a deeper understanding. (At some point, you'll need to develop the deeper understanding in any case; however, you may find it best to delay such understanding until later.)

Required files:

• FieldModifier.java
• FirstWord.java
• GreetGUI.java
• HelpfulHelloGUI.java
• MakeUpperCase.java
• Quote.java
• SimpleCalc.java
• StringFun.java
• StringModifier.java