Inner class accessing outer class

[Java Tip]

The example below shows how to access outer class from inner class.

public class TestIt {
  public static void main(String a[]){
     new TestIt().doit();
     /*
      output :
      Hello world!
     */ 
  }
  public void doit() {
      new InnerClass().sayHello();
  }
  public void enclosingClassMethod(){
      System.out.println("Hello world!");
  }


 class InnerClass {
   public void sayHello() {
     TestIt.this.enclosingClassMethod();
   }
 }
}