Using MAp Problem

[Mohit G Gupta]

   Map<ToDos,String>  m=new TreeMap<ToDos,String>();   

ToDos CLass is defined and it extends Comparator
The above gives the following error:


type Map does not take parameters
{ Map<ToDos,String> m=new TreeMap<ToDos,String>()


can anyone tell why ?

[Malatesh Karabisti]

I think you are using IDE. try compiling using command and post the exact error message.I didn't get any error for following code. by the way what is the version of your JDK ?

import java.util.Comparator;
import java.util.Map;
import java.util.TreeMap;
   
public class Browser {
 public static void main(String[] args) {
	 Map<ToDos, String>  m=new TreeMap<ToDos,String>();  
	 System.out.println(m.put(new ToDos(), "one"));
 }
}

class ToDos implements Comparator{
public int compare(Object arg0, Object arg1) {
return 0;
	}
}
 

[Matthew Brown]

The Java version is the first thing I'd check. If it's 1.4 or earlier then it won't understand generics.

[Mohit G Gupta]

i am using jcreator lite

jdk 1.6

[Prabhakar Reddy Bokka]

Mohit,

The code posted by Malatesh works perfectly alright. Did you tried??

[Hebert Coelho]

Which error are you getting?

[Shanky Sohar]

it may be possible that you will be having a same class in the same package with the same name.i.e ToDOs.

So compiler is taking that class intead of the one which is implementing the comparator.
Have a check..Otherwise code should work fine