Week 6 [from Wed Feb 12 noon] - Tutorial

During the tutorial, demo your ability to do debugging using an IDE by performing the following tasks:

1. Set a breakpoint in the following method of the Main class.

   /** Reads the user command and executes it, until the user issues the exit command.  */
   private void runCommandLoopUntilExitCommand() {
       Command command;
       do {
           String userCommandText = ui.getUserCommand();
           command = new Parser().parseCommand(userCommandText);
           CommandResult result = executeCommand(command);
           personBook.setLastShownList(result.getRelevantPersons());
           ui.showResultToUser(result);
   
       } while (!ExitCommand.isExit(command));
   }
   

2. Show how to set a conditional breakpoint so that execution pauses when the user types in the command list.
3. Use the debugger to step through the code while explaining how the code works. Start from the main method.
4. Explain your answer to the following question:

   What's the purpose of the variable PersonBook#lastShownList? Is it really needed?