reverse a List and return Iterable - Java java.util

Java examples for java.util:List Operation

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Description

reverse a List and return Iterable

Demo Code

/*//ww w.  j  av a  2s.  c o m
 * Copyright 2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;

import java.util.*;

public class Main {
    public static void main(String[] argv) {
        List list = java.util.Arrays.asList("asdf", "java2s.com");
        System.out.println(reverse(list));
    }

    public static <T> Iterable<T> reverse(final List<T> list) {
        return new Iterable<T>() {
            public Iterator<T> iterator() {
                final ListIterator<T> listIterator = list.listIterator(list
                        .size());

                return new Iterator<T>() {
                    public boolean hasNext() {
                        return listIterator.hasPrevious();
                    }

                    public T next() {
                        return listIterator.previous();
                    }

                    public void remove() {
                        listIterator.remove();
                    }
                };
            }
        };
    }
}

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