| /* |
| * Copyright (C) 2009 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 dalvik.jtreg; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| /** |
| * Utility methods for strings. |
| */ |
| public class Strings { |
| |
| static String join(Object[] objects, String delimiter) { |
| return join(Arrays.asList(objects), delimiter); |
| } |
| |
| static String join(Iterable<?> objects, String delimiter) { |
| Iterator<?> i = objects.iterator(); |
| if (!i.hasNext()) { |
| return ""; |
| } |
| |
| StringBuilder result = new StringBuilder(); |
| result.append(i.next()); |
| while(i.hasNext()) { |
| result.append(delimiter).append(i.next()); |
| } |
| return result.toString(); |
| } |
| |
| static String[] objectsToStrings(Object[] objects) { |
| String[] result = new String[objects.length]; |
| int i = 0; |
| for (Object o : objects) { |
| result[i++] = o.toString(); |
| } |
| return result; |
| } |
| |
| static String[] objectsToStrings(Collection<?> objects) { |
| return objectsToStrings(objects.toArray()); |
| } |
| } |