How to change a String as I am scanning text Java

Question

I am trying to replace a "." with an "X". This is eventually for a text based maze that the computer will figure out. I just want to get the first one changed, and hopefully I can figure the rest out from there. This is what I have so far.

Scanner sc = new Scanner(maze2);

public void traverseMaze(int row, int col, int handLocationX, int handLocationY) {

    for(int rowCount = 0; rowCount <=11 ; rowCount ++){
        row = rowCount;

        for(int colCount = 0; colCount <= 11; colCount++){
            col = colCount;

            if(row ==2 && col ==0){
                System.out.println(col);
                System.out.println(row);
                sc.next().replace(".", "X"); //stuck here HELP! :)
            }
        }
        System.out.println(maze2);
    }

what is sc? please explain what have you done and is there an error at all. — AchmadJP, Mar 14 '16 at 22:58
In case sc.next() returns a String, please remind that String.replace() doesn't modify the string itself but rather returns a new string in which the occurence has been replaced. — Robert Kock, Mar 14 '16 at 23:01

score 0 · Answer 1 · answered Mar 14 '16 at 23:57

0

As mentioned in the comments, String is immutable, so

sc.next().replace(".", "X"); //stuck here HELP! :)

should be something like this

String orgStr = sc.next();
String newStr = orgStr.replace(".", "X");

answered Mar 14 '16 at 23:57

sinclair

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How to change a String as I am scanning text Java

1 Answers1