我想定义一个实现一般Comparable接口的类.在我的类中,我还定义了一个通用类型的元素T.为了实现该接口,我将比较委托给T.这里是我的代码：
public class Item<T extends Comparable<T>> implements Comparable<Item> {
private int s;
private T t;
public T getT() {
return t;
}
@Override
public int compareTo(Item o) {
return getT().compareTo(o.getT());
}
}
当我尝试编译它,我得到以下错误信息：
Item.java:11: error: method compareTo in interface Comparable<T#2> cannot be applied to given types;
return getT().compareTo(o.getT());
^
required: T#1
found: Comparable
reason: actual argument Comparable cannot be converted to T#1 by method invocation conversion
where T#1,T#2 are type-variables:
T#1 extends Comparable<T#1> declared in class Item
T#2 extends Object declared in interface Comparable
1 error
有人可以告诉我为什么和如何解决它？
