Inner Class/Overridding

[Alk]

Can you Override a method in Inner class and Nested class

[Vimala]

yes, you can. Here is the sample code!

class Outer{
    public Outer(){
 System.out.println(" in Outer Constr");
    }
    public static void main(String args[]){
    Outer t=new Outer();
    Outer.Inner t1 = t.new Inner();
    t.outerMethod();
    t1.innerMethod();
    t1.createSubInner();
    }
    public void outerMethod(){
    System.out.println("in outerMethod");
    } 
     public static class Inner
     {
            public void innerMethod()
    {
      System.out.println("in inner class inner() ");
        }
    
        public void createSubInner()
         {
     subInner st1 = new subInner();
     st1.subInnerMethod();
         }
        
            public class subInner extends Inner
    {
subInner()
{
  System.out.println("in subInner constr");
}
public void subInnerMethod()
{
 System.out.println("in overrided() in inner subclass");
 }
     }
        }
    }

[I added [ code ] tags to make indentation visible - Jim]
[This message has been edited by Jim Yingst (edited February 02, 2000).]
[This message has been edited by Tony Alicea (edited February 02, 2000).]

[Thiru Thangavelu]

which method you are overriding here? Is a nested static class can be overridden by non-static inner class? Anyone can explain the program?

[Kasey Tritt]

which method you are overriding here? Is a nested static class can be overridden by non-static inner class?

None. The example does not demonstrate any overriding at all. Overriding means the overriding method in the subclass must have the same method signature with the overriden method in the parent class.
I took a look at the methods the example declare and found the following:

 
public void outerMethod()
public void innerMethod()
public void createSubInner()
public void subInnerMethod()

As you can see, there are no instances of matching signatures and thus no overriding at all.

[Thiru Thangavelu]

that's why i was wondering about the program. Can anyone post the example for overriding methods in inner classes?

[Dave Vick]

Alk and Vimala
Welcome to the Java Ranch, we hope you’ll enjoy visiting as a regular however,
your name is not in keeping with our naming policy here at the ranch. Please change your display name to an appropriate name as shown in the policy.
Thanks again and we hope to see you around the ranch!!

[Francisco A Guimaraes]

here is an example:

public class Test {
public void foo() {
System.out.println("Test.foo()");
}
class Inner extends Test {
public void foo() {
System.out.println("Inner.foo()");
}
}
public static void main(String [] args) {
Test.Inner inner = new Test().new Inner();
inner.foo();
}
}

hope it helps,
Francisco

[Jessica Sant]

Originally posted by Dave Vick:
Alk and Vimala
Welcome to the Java Ranch...

... Dave you're so good!! but seeing as though they haven't posted in 2 years, i don't think they'll be changing their names anytime soon

[Rob Ross]

Don't sweat it, I did the same thing recently. It's amazing that these old posts are still being recycled! But it's a good thing.