Java writes writes line multiple times?

Question

static void goOut(String in) {
                  //instance variables
    String fileCopy = currentLine +     in;
    try {
        FileWriter writer = new FileWriter(output,true);


        writer.write(line1 + System.getProperty("line.separator", "\r\n"));
        writer.write(fileCopy + System.getProperty("line.separator", "\r\n"));


    }   catch(IOException ex) {
        ex.printStackTrace();
    }
}

Edited code to the correct standard as pointed out by other users.

Answer 1

of course because thats what you r telling it to do. every time is called it writes both x and the number. a quick fix: you can keep a flag if it is the first run set it flag = true. and check within ur method, sth like this:

public class YourClass{

private boolean didRun = false;

static void goOut(String in) {

    ...... init ur file and writer
    if(!didRun)
       writer.write(Y);

     writer.write(in);
     writer.close();
     didRun = true;
    }
}

I dont know the rest of the code but i think thats what u need