i+.txt

java入门的几个代码,很实用,初学者不可错过

public class Stack extends SinglyLinkedList  //栈继承单向链类SinglyLinkedList
{ 
  Stack() {     //构造方法
  Supper()
}
 public void push(Object obj) {
addToHead(obj);
}
public Object pop() {
return removeFromHead()
}
public boolean isEmpty()   //方法isEmpty()的作用是判断栈是否为空
  {
    return size()==0;
  }
}