// Insert elements
public void push(int element) {
    myStack [pointer] = element ;
	pointer ++ ;
}

// Remove elements
public int pop() {
	pointer -- ;
	return myStack [pointer+1] ;
}

// Check whether the stack is full
public boolean isFull() {
    return pointer == 1000 ;
}

// Check whether the stack is empty
public boolean isEmpty() {
    return pointer == 0 ;
}