package dk.itu.oop.lecture5;

import java.util.Iterator;

public class PeekIterator implements Iterator {
	private Iterator inIterator;
	private Object nextElement;
	
	public PeekIterator(Iterator in){
		inIterator = in;
		findNext();
	}
	
	private void findNext(){
		if (inIterator.hasNext() )
			nextElement = inIterator.next();
		else
			nextElement = null;
	}
	
	public boolean hasNext(){
		return nextElement != null;
	}
	
	public Object next(){
		Object returnMe = nextElement;
		findNext();
		return returnMe;
	}
	
	public Object peek(){
		return nextElement;
	}
	
	public void remove(){
		inIterator.remove();
	}
}