package datastructure.stack;

public class Array {

    private E[] data;
    private int size;

    // capacityArray
    public Array(int capacity){
        data = (E[])new Object[capacity];
        size = 0;
    }

    // capacity=10
    public Array(){
        this(10);
    }

    // 
    public int getCapacity(){
        return data.length;
    }

    // 
    public int getSize(){
        return size;
    }

    // 
    public boolean isEmpty(){
        return size == 0;
    }

    // indexe
    public void add(int index, E e){

        if(index < 0 || index > size)
            throw new IllegalArgumentException("Add failed. Require index >= 0 and index