绑定不匹配：MyClass1类型不是绑定参数的有效替代品 <T extends Comparator<T> &gt;类型的人 <T>

Question

I get an error:::Bound mismatch: The type MyClass1 is not a valid substitute for the bounded parameter <T extends Comparator<T>> of the type Person<T>

import java.util.Comparator;


public class Test
{

    public static void main(String[] args)
    {
        Person<MyClass1> person2 = new Person<>(); // Bound mismatch: The type MyClass1 is not a valid substitute for the bounded parameter <T extends Comparator<T>> of the type Person<T>
    }
}



class MyClass1<T extends Comparator<T>> implements Comparator<T>
{

    @Override
    public int compare(T o1, T o2)
    {
        return 0;
    }
}



class Person<T extends Comparator<T>>
{

}

Answer 1

The requirement is that MyClass1 needs to match T extends Comparator<T> .

For this to be the case, its declaration should be class MyClass1 extends Comparator<MyClass1> .