Java tutorial
//package com.java2s; /* // This software is subject to the terms of the Eclipse Public License v1.0 // Agreement, available at the following URL: // http://www.eclipse.org/legal/epl-v10.html. // You must accept the terms of that agreement to use this software. // // Copyright (C) 2003-2005 Julian Hyde // Copyright (C) 2005-2011 Pentaho // Copyright (c) 2008-2014 Open Link Financial, Inc. All Rights Reserved. */ import java.util.*; public class Main { private static String encodeChar(char c) { StringBuilder buf = new StringBuilder(); buf.append("_x"); String str = Integer.toHexString(c); for (int i = 4 - str.length(); i > 0; i--) { buf.append("0"); } return buf.append(str).append("_").toString(); } private static <T> String toString(List<T> list) { StringBuilder buf = new StringBuilder(); int k = -1; for (T t : list) { if (++k > 0) { buf.append(", "); } buf.append(t); } return buf.toString(); } }