8. Nested classes

• An example of two classes nested within another class:

  
      public class OuterClassName
      {
          // can contain instance variables and methods
          // can contain static variables and methods
          class InnerClassName
          {
              // can contain instance variables and methods
              // can't contain static variables or methods
              // can access all variables and methods of 
              // OuterClass
          }//class InnerClassName
  
          static class StaticInnerClassName
          {
              // can contain instance variables and methods
              // can contain static variables and methods
              // can access static variables and methods of 
              // OuterClass
              // can't access instance variables or methods of 
              // OuterClass
          }//class StaticInnerClassName
  
      }//class OuterClassName
  
  

  The class files generated for the nested classes are:

      OuterClassName.class
      OuterClassName$InnerClassName.class
      OuterClassName$StaticInnerClassName.class