import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Comparator;
 
public class Main {
    class MyType {
    }
 
    class MyComparator implements Comparator<MyType> {
        @Override
        public int compare(MyType o1, MyType o2) {
            return 0;
        }
 
        @Override
        public boolean equals(Object obj) {
            return false;
        }
    }
 
    public static void main(String[] args) {
        Class<?> klass = MyComparator.class;
        Type comparatorType = klass.getGenericInterfaces()[0];
        System.out.println(comparatorType.getTypeName());
        ParameterizedType preciseType = (ParameterizedType) comparatorType;
        System.out.println(preciseType.getActualTypeArguments()[0]);
    }
}
 

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