Overriding toString()

I am curious why the following code does not honor my override of toString() method. Any ideas???

//Class to test the override of toString method
import java.util.*;
public class MapTest extends HashMap {

public static void main(String args[]){
HashMap<String, Integer> mps = new HashMap<String, Integer>();
mps.put("Tom",new Integer(26));
mps.put("Steve",new Integer(33));
mps.put("Kelly",new Integer(27));
System.out.println(mps);
}

public String toString(){

return "Tom is 26, Steve is 33, Kelly is 27";

}

}

Sorry.... My mistake...I realized that I invoked an object of SuperClass type. But what if I change the statement like this:

import java.util.*;
public class MapTest extends HashMap {

public static void main(String args[]){
HashMap<String, Integer> mps = new MapTest<String, Integer>();
mps.put("Tom",new Integer(26));
mps.put("Steve",new Integer(33));
mps.put("Kelly",new Integer(27));
System.out.println(mps);
}

public String toString(){

return "Tom is 26, Steve is 33, Kelly is 27";

}

}

Looks like this MapTest class ever hold Tom,Steve & Kelly only ?

Hi,

Actually you need to do something like this..

but i dun see any variables declared.. maybe this might help and using google.com? I did not have any experience using hashmap so can't help much..

Regards,
Jon

Did your code compile?
I am having problems compiling the code. It says "Type MapTest doesn't take parameters"!.

Anyway, I guess, to test the override of toString method, you have to call the toString() method actually.

Please UseCodeTags.

What's the question?

it works on with those variables that uses with arraylist...

Regards,
Jon

Agree with David Newton; you haven't actually told us what the problem is.

Your class has an overridden toString method which appears to work. You ought to declare it as . . . classMapTest<K, V> . . . but your class seems not to fulfill the test of "a MapTest IS-A HashMap". And as Vijitha Kumara said, the toString method will be wrong whenever one of your friends has a birthday!