Java tutorial
import java.io.ByteArrayOutputStream; import java.io.OutputStreamWriter; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.nio.charset.Charset; /* * 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. * */ /** * Various string manipulation methods that are more efficient then chaining * string operations: all is done in the same buffer without creating a bunch of * string objects. * * @author <a href="mailto:dev@labs.apache.org">Dungeon Project</a> */ public class Main { /** * Get the default charset * * @return The default charset */ public static final String getDefaultCharsetName() throws Exception { String defaultCharset; try { // Try with jdk 1.5 method, if we are using a 1.5 jdk :) Method method = Charset.class.getMethod("defaultCharset", new Class[0]); defaultCharset = ((Charset) method.invoke(null, new Object[0])).name(); } catch (NoSuchMethodException nsme) { defaultCharset = new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding(); } catch (InvocationTargetException ite) { defaultCharset = new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding(); } catch (IllegalAccessException iea) { defaultCharset = new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding(); } catch (RuntimeException e) { // fall back to old method defaultCharset = new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding(); } return defaultCharset; } }