Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 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.
 */

import java.lang.reflect.Array;

public class Main {

    @SuppressWarnings("unchecked")
    public static final <T> T[] add(T[] array, T obj) {
        if (array == null) {
            throw new IllegalArgumentException("array");
        }
        T[] newArray = (T[]) Array.newInstance(array.getClass().getComponentType(), array.length + 1);
        System.arraycopy(array, 0, newArray, 0, array.length);
        newArray[array.length] = obj;
        return newArray;
    }

    @SuppressWarnings("unchecked")
    public static final <T> T[] add(final T[] a, final T[] b) {
        if (a != null && b != null) {
            if (a.length != 0 && b.length != 0) {
                T[] array = (T[]) Array.newInstance(a.getClass().getComponentType(), a.length + b.length);
                System.arraycopy(a, 0, array, 0, a.length);
                System.arraycopy(b, 0, array, a.length, b.length);
                return array;
            } else if (b.length == 0) {
                return a;
            } else {
                return b;
            }
        } else if (b == null) {
            return a;
        } else {
            return b;
        }
    }
}