Java "or function" help!?

Question

ok, so I'm writing a text based game and I have points in which the user has to input data (duh). It's really lengthy to create a switch so I did this:
if("north".equals(direction)||"go north".equals(direction)||"walk north".equals(direction)||"north door".equals(direction)){
			room = 2;
		}
except, it only ends up doing room=2 if I input "north". nothing else works. Any advice?

llaffer · Accepted Answer

Sounds to me that you'll want to to create a separate method where you pass in the command from the user and it parses it down to one of a small subset of commands.

So you don't have to check for every possible outcome inside your main logic.  Use a separate function to trim out what might be 20-30 possible entries down to the 5-6 unique ones that you really care about.  So it might look like this:

direction = parseDirection(direction);

if ("north".equals(direction)) {
room = 2; }

---

so direction is both the input to the function and stores the return.  Then in your parseDirection method:

private String parseDirection(String direction) {
 String ret = "";
 if (direction.toLowerCase().contains("north"))
    ret = "north";
 else if (direction.toLowerCase().contains("south"))
   ret = "south";
 ...
 ...
  return ret;
}

Something like that, so this method will search your strings for what you want and only return the few possible strings that your main method will be looking for.

Mystic · Answer

Are you sure using scan.nextLine() instead of scan.next()?
then try what llaffer said

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Java "or function" help!?

2 Answers