Here you can find the source of summarizeCollection(Collection> collection, String collectionType, String elementType)
public static String summarizeCollection(Collection<?> collection, String collectionType, String elementType)
//package com.java2s; /*/*from ww w . jav a 2 s . co m*/ * Thrifty * * Copyright (c) Microsoft Corporation * * 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 * * THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING * WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE, * FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT. * * See the Apache Version 2.0 License for specific language governing permissions and limitations under the License. */ import java.util.Collection; public class Main { public static String summarizeCollection(Collection<?> collection, String collectionType, String elementType) { if (collection == null) { return "null"; } return collectionType + "<" + elementType + ">(size=" + collection.size() + ")"; } }