Java Collection Join joinSorted(Collection s, String delimiter)

Description

join Sorted

License

Open Source License

Declaration

@SuppressWarnings({ "unchecked", "rawtypes" })

    public static String joinSorted(Collection<? extends Comparable> s, String delimiter) 

Method Source Code

//package com.java2s;
/*/*from w  ww  .jav  a  2s  .c  o m*/
 * Copyright (c) Erasmus MC
 *
 * This file is part of TheMatrix.
 *
 * TheMatrix is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.ArrayList;

import java.util.Collection;
import java.util.Collections;

import java.util.Iterator;
import java.util.List;

public class Main {
    @SuppressWarnings({ "unchecked", "rawtypes" })

    public static String joinSorted(Collection<? extends Comparable> s, String delimiter) {

        List list = new ArrayList(s);

        Collections.sort(list);

        return join(list, delimiter);

    }

    public static String join(Collection<?> s, String delimiter) {

        StringBuffer buffer = new StringBuffer();

        Iterator<?> iter = s.iterator();

        if (iter.hasNext()) {

            buffer.append(iter.next().toString());

        }

        while (iter.hasNext()) {

            buffer.append(delimiter);

            buffer.append(iter.next().toString());

        }

        return buffer.toString();

    }

    public static String join(Object[] objects, String delimiter) {

        StringBuffer buffer = new StringBuffer();

        if (objects.length != 0)
            buffer.append(objects[0].toString());

        for (int i = 1; i < objects.length; i++) {

            buffer.append(delimiter);

            buffer.append(objects[i].toString());

        }

        return buffer.toString();

    }
}

Related

1. joinNullSafe(Collection collection, String separator)
2. joinObjects(Collection