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我有以下接口:如何實現:接口MySortedCollection <T延伸可比<T>>
interface MySortedCollection<T extends Comparable<T>> {
boolean isElement(T t);
void insert(T t);
void printSorted();
}
我試圖用AVLTree實現接口:
public class AVLTree<T> implements MySortedCollection{
private AVLNode<T> tree=null;
public AVLTree(){
}
public boolean isElement(T t){
}
public void insert(T t){
if(tree==null){
tree= new AVLNode<T>(t);
}
}
public void printSorted(){}
}
,但我得到了錯誤:
error: AVLTree is not abstract and does not override abstract
method insert(Comparable) in MySortedCollection
public class AVLTree<T> implements MySortedCollection{
怎麼了?