Paper Writing Services private String secondWord; /** * Create a command object. First and second word must be supplied, but * either one (or both)

Abstract
both) can be null. * @param firstWord The first word of the command. Null if the command * was not recognised. * @param secondWord The second word of the command. */ public Command(String firstWord, String secondWord) { commandWord = firstWord; ts.secondWord = secondWord; } /** * Return the command word (the first word) of ts command. If the

In ts part, you will install Git, a version control system, and use it to track source code for a simple project. Version control systems have two big advantages: (1) tracking versions of source code, and (2) facilitating collaboration among multiple developers working on the same code. In ts lab, you will learn to use Git to track versions of source code. Note: Ts part is a repeat of an assignment from CIS 133J. If you already have Git installed you don’t need to do that step, but you should complete all the other steps anew. Practicing the Git flow again will help you learn it. Do not resubmit a project from 133J. Each time you commit, a timestamp is associated with the commit. */ public class Command { private String commandWord; private String secondWord; /** * Create a command object. First and second word must be supplied, but * either one (or both) can be null. * @param firstWord The first word of the command. Null if the command *                  was not recognised. * @param secondWord The second word of the command. */ public Command(String firstWord, String secondWord) { commandWord = firstWord; ts.secondWord = secondWord; } /** * Return the command word (the first word) of ts command. If the * command was not understood, the result is null. * @return The command word. */ public String getCommandWord() { return commandWord; } /** * @return The second word of ts command. Returns null if there was no * second word. */ public String getSecondWord() { return secondWord; } /** * @return true if ts command was not understood. */ public boolean isUnknown() { return (commandWord == null); } /** * @return true if the command has a second word. */ public boolean hasSecondWord() { return (secondWord != null); } } room ” */ public class Room { public String description; public Room northExit; public Room southExit; public Room eastExit; public Room westExit; /** * Create a room described “description”. Initially, it has * no exits. “description” is sometng like “a kitchen” or * “an open court yard”. * @param description The room’s description. */ public Room(String description) { ts.description = description; } /** * Define the exits of ts room.  Every direction either leads * to another room or is null (no exit there). * @param north The north exit. * @param east The east east. * @param south The south exit. * @param west The west exit. */ public void setExits(Room north, Room east, Room south, Room west) { if(north != null) { northExit = north; } if(east != null) { eastExit = east; } if(south != null) { southExit = south; } if(west != null) { westExit = west; } } /** * @return The description of the room. */ public String getDescription() { return description; } } “Parser */ public class Parser { private CommandWords commands;  // holds all valid command words private Scanner reader;         // source of command input /** * Create a parser to read from the terminal window. */ public Parser() { commands = new CommandWords(); reader = new Scanner(System.in); } /** * @return The next command from the user. */ public Command getCommand() { String inputLine;   // will hold the full input line String word1 = null; String word2 = null; System.out.print(“> “);     // print prompt inputLine = reader.nextLine(); // Find up to two words on the line. Scanner tokenizer = new Scanner(inputLine); if(tokenizer.hasNext()) { word1 = tokenizer.next();      // get first word if(tokenizer.hasNext()) { word2 = tokenizer.next();      // get second word // note: we just ignore the rest of the input line. } } // Now check whether ts word is known. If so, create a command // with it. If not, create a “null” command (for unknown command). if(commands.isCommand(word1)) { return new Command(word1, word2); } else { return new Command(null, word2); } } } “command Words ” */ public class CommandWords { // a constant array that holds all valid command words private static final String[] validCommands = { “go”, “quit”, “help” }; /** * Constructor – initialise the command words. */ public CommandWords() { // notng to do at the moment… } /** * Check whether a given String is a valid command word. * @return true if a given string is a valid command, * false if it isn’t. */ public boolean isCommand(String aString) { for(int i = 0; i < validCommands.length; i++) { if(validCommands[i].equals(aString)) return true; } // if we get here, the string was not found in the commands return false; } }

Sample references
  • (‘Henly, S. J., McCarthy, D. O., Wyman, J. F., Stone, P. W., Redeker, N. S., McCarthy, A.M., . . . Moore, S. M. (2015). Integrating emerging areas of nursing science intoPhD programs. Nursing Outlook, 63(4), 408-416.’,)
  • (‘Eden, S. 2009. The work of environmental governance networks: Traceability, credibility and certification by the Forest Stewardship Council. Geoforum 40:383-394.’,)
  • (‘Dailey, P. S., G. Zuba, G. Ljung, I. M. Dima, and J. Guin. 2009. On the relationship between North Atlantic sea surface temperatures and US hurricane landfall risk. Journal of Applied Meteorology and Climatology 48(1):111-129.’,)
  • (‘Foy, R., Eccles, M., Jamtvedt, G., Young, J., Grimshaw, J., & Baker, R. (2005). What dowe know about how to do audit and feedback? Pitfalls in applying evidence froma systematic review. BMC Health Services Research, 5(1), 1.’,)

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