What is different between Comparator and Comparable interfaces?

Comparator:
1. we can use the comparator to difine cutomized sorting order.
2. This interface present in java.util package..
3. This interface having two methods.

         compare()

         equals()

4. No predefined class implements the Comparator interface

                                                                                                    

Comparable:

        

1. we can use comparable to define default natural sorting order.

2. This interface present in java.lang package.

3. It defines only one mthod that is 

        CompareTo()

4. All wrapper classes and String class implements Comparable interface.