Mandatory cloneable interface in Java

Question

I\'m having a small problem in Java. I have an interface called Modifiable. Objects implementing this interface are Modifiable.

I also have a ModifyCommand class (wi

Answer 1

Adding to Sean Reilly's answer, this should solve your problem, and is more type safe. It compiles and runs fine with me on JDK6:

public interface Modifiable> extends Cloneable {
    T clone();
}
public class Test implements Modifiable {
    @Override
    public Test clone() {
        System.out.println("clone");
        return null;
    }
    public static void main(String[] args) {
        Test t = new Test().clone();
    }
}

I couldn't test it with Java 5 because I don't have it installed, but I guess it would work fine.