Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

public class Main {
    /**
     * combines all the lists in a collection to a single list
     */
    public static <T> List<T> flatten(Collection<List<T>> nestedList) {
        List<T> result = new ArrayList<T>();
        for (List<T> list : nestedList) {
            result.addAll(list);
        }
        return result;
    }

    /**
     * Add all the items from an iterable to a collection.
     *
     * @param <T>
     *          The type of items in the iterable and the collection
     * @param collection
     *          The collection to which the items should be added.
     * @param items
     *          The items to add to the collection.
     */
    public static <T> void addAll(Collection<T> collection, Iterable<? extends T> items) {
        for (T item : items) {
            collection.add(item);
        }
    }
}