What is Method Overriding

Method Overriding happens when a method in a subclass has the same name and type signature as a method in its superclass.

When an overridden method is called within a subclass, it will refer to the method defined in the subclass.

The method defined by the superclass will be hidden.

Consider the following:

 
class Base {
  int i;
  Base(int a) {
    i = a;
  }
  void show() {
    System.out.println("i:" + i);
  }
}
class SubClass extends Base {
  int k;
  SubClass(int a, int c) {
    super(a);
    k = c;
  }
  void show() {
    System.out.println("k: " + k);
  }
}
public class Main {
  public static void main(String args[]) {
    SubClass subOb = new SubClass(1, 3);
    subOb.show();
  }
}

The output produced by this program is shown here:


k: 3
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