| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * 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 org.apache.harmony.kernel.vm; |
| |
| /** |
| * String utility functions. |
| */ |
| public final class StringUtils { |
| /** |
| * This class is uninstantiable. |
| */ |
| private StringUtils() { |
| // This space intentionally left blank. |
| } |
| |
| /** |
| * Combine a list of strings in an <code>Object[]</code> into a single |
| * string. |
| * |
| * @param list non-null; the strings to combine |
| * @return non-null; the combined form |
| */ |
| public static String combineStrings(Object[] list) { |
| int listLength = list.length; |
| |
| switch (listLength) { |
| case 0: { |
| return ""; |
| } |
| case 1: { |
| return (String) list[0]; |
| } |
| } |
| |
| int strLength = 0; |
| |
| for (int i = 0; i < listLength; i++) { |
| strLength += ((String) list[i]).length(); |
| } |
| |
| StringBuilder sb = new StringBuilder(strLength); |
| |
| for (int i = 0; i < listLength; i++) { |
| sb.append(list[i]); |
| } |
| |
| return sb.toString(); |
| } |
| } |