Question

I am facing difficulty in writing a generic class in java whose generic members can be compared.

Following is the code snippet I have written, but it is giving me compilation error.

public class TestClass <E extends Comparable<E>>{
private E data1;
private E data2;

    public void fun(){
        if(data1 > data2){

        }
    }

}

It is giveing me error by saying that compare(‘>’) operations is not valid.
As per my understanding if I am extending Comparable I should be able to this operation.

Answer 1

Java isn’t C++, and doesn’t have operator overloading. You need to use .compareTo(), which is provided by the Comparable interface. For example:

if(data1.compareTo(data2) > 0){