Java tutorial
//package com.java2s; /* * Copyright 2011-2013 HTTL Team. * * 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.PrintWriter; import java.io.StringWriter; public class Main { public static String getMethodFullName(String name, Class<?>[] parameterTypes) { StringBuilder buf = new StringBuilder(); buf.append(name); buf.append("("); if (parameterTypes != null && parameterTypes.length > 0) { boolean first = true; for (Class<?> type : parameterTypes) { if (type != null) { if (first) { first = false; } else { buf.append(","); } buf.append(type.getCanonicalName()); } } } buf.append(")"); return buf.toString(); } public static String toString(Throwable e) { StringWriter w = new StringWriter(); PrintWriter p = new PrintWriter(w); p.print(e.getClass().getName() + ": "); if (e.getMessage() != null) { p.print(e.getMessage() + "\n"); } p.println(); try { e.printStackTrace(p); return w.toString(); } finally { p.close(); } } }