array Merge - Java Collection Framework

Java examples for Collection Framework:Array Merge

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Description

array Merge

Demo Code

/**//from   w w w. ja va  2  s  . com
 * Copyright 2011 <a href="mailto:dwr@design.ru">Valeriy Yatsko</a>
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.lang.reflect.Array;

public class Main {
    public static <T> T[] arrayMerge(T[]... arrays) {
        int count = 0;
        for (T[] array : arrays) {
            count += array.length;
        }

        T[] mergedArray = (T[]) Array.newInstance(arrays[0][0].getClass(),
                count);

        int start = 0;
        for (T[] array : arrays) {
            System.arraycopy(array, 0, mergedArray, start, array.length);
            start += array.length;
        }

        return (T[]) mergedArray;
    }
}

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