容器工具代碼

/**
 * LinkedList 實現的Stack
 */

public class Stack<T> {

LinkedList<T> store = new LinkedList<T>();
public void push(T t){store.addFirst(t);}
public T pop(){return store.removeFirst();}
public T peek(){return store.getFirst();}
public boolean isEmpty(){return store.isEmpty();}
public String toString(){return store.toString();}
public int size(){return store.size();}
}