Java for LeetCode 232 Implement Queue using Stacks

	Stack<Integer> stack=new Stack<Integer>();
	    public void push(int x) {
	        stack.push(x);
	    }

	    // Removes the element from in front of queue.
	    public void pop() {
	        stack.remove(0);
	    }

	    // Get the front element.
	    public int peek() {
	        return stack.get(0);
	    }

	    // Return whether the queue is empty.
	    public boolean empty() {
	    	return stack.isEmpty();

	    }