public class Test {
       HashMap<String, Integer> tokens;
       public Test(file, int, int){
       }
       public void start(){
              read();
              displayOutput();
       }
       private void read(){
               file[] files = inDir.listFiles();
               for (int i=0;i<files.length;i++){
                  File file = new
                              File(files[i].getAbsoluteFile().toString());
                 .........
                 tokens = gettokens(file);
               }
       }
       private HashMap<String, Integer> getokens(File infile) {
            HashMap<String, Integer> fileTokens = new HashMap<String, Integer>();

            BufferedReader in;
            ...........
            ...........
            filetokens.put(..);
            ...............
            ...............
            ...............
            return fileTokens;
        }

}