Java tutorial
//package com.java2s; /* * 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. * * Copyright @2008-2010 the original author or authors. */ import java.util.*; public class Main { static String getContents(Collection c) { StringBuilder sb = new StringBuilder(); for (Iterator it = c.iterator(); it.hasNext();) { sb.append(it.next()); if (it.hasNext()) { sb.append(", "); } } return sb.toString(); } }