/*
 * Copyright 2007 Yusuke Yamamoto
 *
 * 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.
 */

package twitter4j;

/**
 * @author Yusuke Yamamoto - yusuke at mac.com
 * @since Twitter4J 2.1.4
 */
class StringUtil {
    private StringUtil() {
        throw new AssertionError();
    }

    public static String join(long[] follows) {
        StringBuilder buf = new StringBuilder(11 * follows.length);
        for (long follow : follows) {
            if (0 != buf.length()) {
                buf.append(",");
            }
            buf.append(follow);
        }
        return buf.toString();
    }

    public static String join(String[] track) {
        StringBuilder buf = new StringBuilder(11 * track.length);
        for (String str : track) {
            if (0 != buf.length()) {
                buf.append(",");
            }
            buf.append(str);
        }
        return buf.toString();
    }

}
