Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * 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.ArrayList;

public class Main {
    public static String joinStrings(String connector, ArrayList<String> strings, StringBuilder recycle) {
        if (strings.size() <= 0) {
            return "";
        }
        if (recycle == null) {
            recycle = new StringBuilder();
        } else {
            recycle.setLength(0);
        }
        recycle.append(strings.get(0));
        for (int i = 1; i < strings.size(); i++) {
            recycle.append(connector);
            recycle.append(strings.get(i));
        }
        return recycle.toString();
    }
}