Use of super keyword in java

The super keyword acts some what like this ,except that it always that it always refers to the super class of the subclass in which it is used.This usage has the following general form

super.member

member can be either a method or an instance variable.  the super keyword is most applicable to situations in which memebe names of a subclass hide memebers by the same name in the superclass .Consider this simple class hierarchy

class Base
{
  int i;
}
class SubClass extends Base
 {
  int i; // this i hides the i in A
  SubClass(int a, int b) {
    super.i = a; // i in A
    i = b; // i in B
  }
  void show()
  {
    System.out.println("i in superclass: " + super.i);
    System.out.println("i in subclass: " + i);
  }
}
public class Mainkey
{
  public static void main(String args[])
  {
    SubClass subOb = new SubClass(1, 2);
    subOb.show();
  }
}

Output 

G:\>javac Mainkey.java
G:\>java Mainkey
i in superclass: 1
i in subclass: 2