package my.collection.linear;
public class MyStack {
private int capacity = 10;
private MyArrayList elementData = new MyArrayList(capacity);
public void push(Object obj){
elementData.add(obj);
}
public Object pop(){
int tmpSize = elementData.size()-1;
Object tmpElement = elementData.get(tmpSize);
elementData.remove(tmpSize);
return tmpElement;
}
public Object peek(){
return elementData.get(elementData.size()-1);
}
public boolean isEmpty(){
boolean isEmp;
if(elementData.size() == 0){
isEmp = true;
}else{
isEmp = false;
}
return isEmp;
}
public int size(){
return elementData.size();
}
}