package tong.java.one;
/**
* 自定义栈
* @author tong
*
*/
public class MyStack {
private MyArrayList datas = new MyArrayList();
private int size;
//入栈
public void push(Object o){
datas.add(o);
size++;
}
//出栈
public Object pop(){
Object topData = datas.remove(size-1);
size--;
return topData;
}
public Object peek(){
return datas.get(size-1);
}
public boolean isEmpty(){
if(size==0){
return true;
}else{
return false;
}
}
public int size(){
return size;
}
}