Comparing user input values

Question

I am not sure why but when I get a string from the user, I cannot compare it in an if statement but when I try to print it, it works fine.

Part of my code:

         Scanner in = new Scanner(System.in);
         while (true) {
             String userInput;
             int rowInput, colInput;
             printBoard(board);
             System.out.print("Move: ");

             userInput = in.next();

             // shift board right on a row
             if (userInput == "r") {
                 System.out.print("row #: \r");
                 rowInput = in.nextInt();
                 moveRight(--rowInput, board);
             }

Does anyone know why this isn't working as expected?

score 0 · Answer 1 · answered Dec 20 '15 at 13:18

0

You an try this:

if (userInput.equals("r"))

== is used to compare the address and equals is used to compare contents.

answered Dec 20 '15 at 13:18

Bahramdun Adil

5,907
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score 0 · Answer 2 · answered Dec 20 '15 at 13:18

0

I should be using equals instead of ==.

So it would lead to:

...

if (userInput.equals("r"))

...

answered Dec 20 '15 at 13:18

thyago stall

1,654
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Comparing user input values

2 Answers2