Unknown command problem

Question

hi my problem is that i am creating a maze game. the maze is a 2d array of integers. and fed in threw a reader and loaded.
static void play(){
try {
//creates a buffered reader
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
//boolean varible is set to true when the program is running until exit is typed
boolean running = true;
while (running){
//a new String varible which is used for input
String line = in.readLine();
//when the game is being played a line string says you typed. + line
//the +line is what the user typed
System.out.println("You typed "+line);
//if the user types south call the south method;
if(line.startsWith("south")){
south();
//if the user types east call the east method
else if(line.startsWith("east")){
east();
//if the user types west call the west method
else if(line.startsWith("west")){
west();
//if the user types north then call the north method
//this is not case sensitive
else if(line.equalsIgnoreCase("north")){
north();
// check if they have reached the goal
if(currentX == goalX && currentY == goalY)
System.out.println("You have reached the goal!");
//print out the maze after each turn(this was only used for testing purposes)
print();
//if the user types exit then change the value of running to false and exit the java console
//it also calls the equalsIgnoreCase this method will allow entry in any case
if (line.equalsIgnoreCase("exit")){
running = false;
// else
//          System.out.print( "Unknown command: " + line );
the problem is that if the user types in an invalid command i want to display this error message.
when i run the program however i get the error every time even though the move happens the error message is still displayed. i only want the error message to display when an invalid command is typed
i am a beginner so please use basic language.
thanks jon

Answer 1

Use the code formatting tags when you post code.
hi my problem is that i am creating a maze gameTrue, if you weren't creating a game, you'd probably have no problem.
threw a readerWhere did you throw it?
i am a beginner so please use basic language. Put your "unknown command output" and exit check blocks directly after the check for "north"