Notepad newline replaceAll issues

Question

Hello,
I know this has been covered and I've thoroughly searched the threads, but haven't found resolution. The code is:
     Scanner input = new Scanner(sourceFile);
     PrintWriter output = new PrintWriter(targetFile);
     while (input.hasNext()) {
     String s1 = input.nextLine();
     String s2 = s1.replace(args[2], args[3]);
     output.println(s2);
    }I'm trying to comma separate a list in notepad that's currently separated by a new line
ex:
abstract
tost
nugget
ect
to:
abstract, tost, nugget, ect
I've tried passing \r\n and "\r\n" and many variations with no success. The code changes standard characters just fine, just not new lines. any suggestions?

Answer 1

I've tried passing \r\n and "\r\n" and many variations with no success. The code changes standard characters just fine, just not new lines. any suggestions?The Scanner is very powerful, you can use its useDelimeter() method to do generic replacement (with any pattern and replacement) as follows:
String patternToBeReplaced = "\r\n";   // your args[2]
String replacementString = ", ";       // your args[3]
Scanner scanner = new Scanner("Talha\r\nBin\r\nMasood");  // this is just for testing ,use your source file here
scanner.useDelimiter(Pattern.quote(patternToBeReplaced));
while (scanner.hasNext()) {
     System.out.print(scanner.next());  // write to target file instead
     if (scanner.hasNext())
          System.out.print(replacementString); // write to target file instead
}There can be other ways.
@Mel: s2? start=false at the beginning, not intutive :-)
Thanks!