Question

If I want to copy the content of a text file using a string tokenizer let’s say like this:

StringTokenizer strk = new StringTokenizer(new String(buffer), Constant.DELIMS,true);

And then I want to browse the string tokenizer but also keep count in a variable of how many lines I passed from the initial file:(by this I mean count how many tokens that represent a newline character)

nr_lines=0;
endline="\n";
while (strk.hasMoreTokens()) {
       String word = strk.nextToken(); 
       if (word.equals(endline)) nr_lines++;  
} 

But it doesn’t seem to work right. Am I making the comparison with a wrong delimiter(\n). I also tried with \r. But it returns larger numbers than it should, like nr_lines would increment when it shouldn’t. Could you please help me out. Also if you have another idea of how I could keep track of the line number after transferring the content of a file to a string tokenizer, it would be most welcomed. Thanks a lot.

Answer 1

I would recommend using Scanner instead. While it isn’t as useful for returning Objects, it has the nextLine method, which you can then parse through using StringTokenizer.

Like this:

New Scanner
New StringTokenizer

Get next line from Scanner
  Count the line
  Re-initialize StringTokenizer with the newly read line from Scanner