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package javaapplication3;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author student
 */
public class MyStack {
    private List<Object> list = new ArrayList<Object>();
    public boolean isEmpty(){
        return list.isEmpty();
    }
    public int getSize(){
        return list.size();
    }
    public Object peek(){
        return (Object)list.get(list.size()-1);
    }
    public Object pop(){
        Object a = list.get(list.size()-1);
        list.remove(a);
        return a;
    }

    public void push (Object o){
        list.add(o);
    }
    public int search (Object o){
        for(int i=0; i< this.getSize();i++)
            if(list.get(i).equals(o))
                return i;
        return -1;
    }

    @Override
    public String toString() {
        return "MyStack{" + "list=" + list + '}';
    }



}