Here you can find the source of createCommand(LinkedList
public static String createCommand(LinkedList<SimpleEntry<String, String>> list)
//package com.java2s; /*/*from w w w . ja va 2 s.c o m*/ Copyright 2013 Pieter Rautenbach 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.util.AbstractMap.SimpleEntry; import java.util.Iterator; import java.util.LinkedList; public class Main { private static final String CMD_TERM = "!"; private static final String CMD_SEP = ";"; private static final String CMD_KV_SEP = "="; public static String createCommand(LinkedList<SimpleEntry<String, String>> list) { StringBuffer command = new StringBuffer(); Iterator<SimpleEntry<String, String>> iter = list.iterator(); while (iter.hasNext()) { SimpleEntry<String, String> entry = iter.next(); command.append(entry.getKey()); command.append(CMD_KV_SEP); command.append(entry.getValue()); if (iter.hasNext()) { command.append(CMD_SEP); } } command.append(CMD_TERM); return command.toString(); } }