empty Iterator - Java Collection Framework

Java examples for Collection Framework:Iterator

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Description

empty Iterator

Demo Code

// Copyright (c) 2006 - 2008, Clark & Parsia, LLC. <http://www.clarkparsia.com>
//package com.java2s;

import java.util.Iterator;

import java.util.NoSuchElementException;

public class Main {
    private static final Iterator<Object> EMPTY_ITERATOR = new Iterator<Object>() {
        public boolean hasNext() {
            return false;
        }/*from ww w  . jav  a  2 s  .  c om*/

        public Object next() {
            throw new NoSuchElementException();
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }
    };

    @SuppressWarnings("unchecked")
    public static final <T> Iterator<T> emptyIterator() {
        return (Iterator<T>) EMPTY_ITERATOR;
    }
}

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