In this section we look at a several miscellaneous topics:

• Scope - describes where in the code a variable can be used.
  
  
• Debug Techniques - pratical tips for debugging code.
  
  
• Java Runtime - Java Runtime Environment describes the executables and support files needed to run Java programs.
  
  
• Class Class - an instance of the Class class holds the class definition for a particular class.
  
  
• JVM Instructions 2 - continue the examination of the JVM with an discussion of class and object related instructions.
  
  
• Processing in the JVM - the step followed to execute a program in the JVM.
  
  
• Pack200 tool - compress JAR files for faster transmission