Java tutorial
//package com.java2s; /* * Copyright 2010 JBoss Inc * * 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. */ import java.io.File; public class Main { public static String clazzName(final File base, final File file) { final int rootLength = base.getAbsolutePath().length(); final String absFileName = file.getAbsolutePath(); final int p = absFileName.lastIndexOf('.'); final String relFileName = absFileName.substring(rootLength + 1, p); return relFileName.replace(File.separatorChar, '.'); } }