Java Array Concatenate concat(T val, T[] vals)

Description

concat

License

Open Source License

Declaration

public static <T> T[] concat(T val, T[] vals) 

Method Source Code

//package com.java2s;
/*/* w w w. j a  va  2  s . c  om*/
 * This file is part of JOP, the Java Optimized Processor
 *   see <http://www.jopdesign.com/>
 *
 * Copyright (C) 2008, Benedikt Huber (benedikt.huber@gmail.com)
 *
 * This program 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.Arrays;

import java.util.List;

public class Main {
    public static <T> T[] concat(T val, T[] vals) {
        List<T> v = new ArrayList<T>(vals.length + 1);
        v.add(val);
        v.addAll(Arrays.asList(vals));
        return v.toArray(vals);
    }

    public static <T> T[] concat(T[] vals, T val) {
        T[] v = Arrays.copyOf(vals, vals.length + 1);
        v[vals.length] = val;
        return v;
    }
}

Related

1. concat(Object[] first, Object second)
2. concat(String[] array, String separator)
3. concat(String[] parts)
4. concat(String[] strs)
5. concat(String[]... arrays)
6. concat(T[] a, T[] b)
7. concat(T[] a, T[] b, T[] c, T[] d)
8. concat(T[] arr0, @SuppressWarnings("unchecked") T[]... more)
9. concat(T[] array, Collection collection)