make Item the First in a List - Java java.util

Java examples for java.util:List Operation

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Description

make Item the First in a List

Demo Code

/**//from w w w.j  av a  2s.c om
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 * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
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 * You may elect to use one or the other of these licenses.
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 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or MNA you select, is prohibited.
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 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
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//package com.java2s;
import java.util.LinkedList;
import java.util.List;

public class Main {
    public static <T> List<T> makeItemFirst(final List<T> items, T item) {
        List<T> newItems = new LinkedList<T>();
        for (int i = items.indexOf(item); i < items.size(); i++) {
            newItems.add(items.get(i));
        }

        for (int i = items.indexOf(item) - 1; i >= 0; i--) {
            newItems.add(items.get(i));
        }

        return newItems;
    }
}

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