Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014 doug@neverfear.org
 *
 * 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 static com.google.common.base.Preconditions.checkNotNull;

import java.util.Collection;

import java.util.Map;

public class Main {
    public static <E> void merge(final Collection<E> into, final E[] values) {
        checkNotNull(into, "target cannot be null");
        checkNotNull(values, "source cannot be null");

        for (final E value : values) {
            into.add(value);
        }
    }

    public static <E> void merge(final Collection<E> into, final Collection<E> values) {
        checkNotNull(into, "target cannot be null");
        checkNotNull(values, "source cannot be null");

        into.addAll(values);
    }

    public static <K, V> void merge(final Map<K, V> into, final K key, final V value) {
        checkNotNull(key, "key cannot be null");
        checkNotNull(value, "value cannot be null");

        into.put(key, value);
    }

    public static <K, V> void merge(final Map<K, V> into, final Map<K, V> values) {
        checkNotNull(into, "target cannot be null");
        checkNotNull(values, "source cannot be null");

        into.putAll(values);
    }
}