Java tutorial
//package com.java2s; /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ import java.util.ArrayList; import java.util.Iterator; import java.util.List; public class Main { /** * <p>Given a <code>List</code> of <code>Class</code> objects, this method converts * them into class names.</p> * * <p>A new <code>List</code> is returned. <code>null</code> objects will be copied into * the returned list as <code>null</code>.</p> * * @param classes the classes to change * @return a <code>List</code> of class names corresponding to the Class objects, * <code>null</code> if null input * @throws ClassCastException if <code>classes</code> contains a non-<code>Class</code> entry */ public static List convertClassesToClassNames(List classes) { if (classes == null) { return null; } List classNames = new ArrayList(classes.size()); for (Iterator it = classes.iterator(); it.hasNext();) { Class cls = (Class) it.next(); if (cls == null) { classNames.add(null); } else { classNames.add(cls.getName()); } } return classNames; } }