Differentiate class (static) and instance variables. When does it make sense to use a static variable. Be specific by providing an example.
Using listing 8.6 (on page 311 of the textbook) as a guide, create your own graphical user interface (GUI). Use at least 4 different GUI components (Buttons, Combo box, checkbook, textfield …). Be sure your code compiles and runs. Display a screen capture of your GUI.
Create your own Java code that uses the String class and at least 4 of the methods in that class. Show the code and describe what it is doing.
Create your own Java code that uses the StringBuffer class and at least 4 of the methods in that class. Show the code and describe what it is doing.
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