How to store file into a directory?

Question

i want to save the file(text file) into the directory which i have created using File object in the codes below. how do i do it?
public void saveString(String filename, String string)
          //declare textfile to be null
          PrintWriter textFile = null;
          String line = null;
          try {
               // writes to write.txt
               textFile = new PrintWriter (new FileWriter(filename,true));
               line = string;
               // save string in textfile
               textFile.println(line);
               textFile.close();
               // create a directory (to store (output).xml file)
          File fobj = new File("Testing");
          fobj.mkdir();
          catch (IOException e) {
               System.out.println("Error in opening file");
               System.exit(0);
     }

Answer 1

create the directory first and then create the file u want liek this
File f = new File (fobj,filename);
and then open the fiel to write like this
textFile = new PrintWriter (new FileWriter(f,true));
regards
rohan