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.util.Collection;

import java.util.HashSet;

import java.util.Set;

public class Main {
    public static <E> Collection<E> unique(Collection<? extends E> src, Collection<E> dest) {
        Set<E> set = new HashSet<>();
        for (E element : src) {
            if (!set.contains(element)) {
                set.add(element);
                dest.add(element);
            }
        }
        set.clear();
        return dest;
    }
}