bufferedreader

I'm using following code to get response from the API. BufferedReader bf = new BufferedReader(new InputStreamReader( connection.getInputStream())); System.out.println("bf.readLine() - " + bf.readLine()); output = bf.readLine(); while (output != null) { JSONObject obj = new JSONObject(output); System.out.println("output is " + output); resCode = obj.getString("resCode"); resDesc = obj.getString("COUNT"); } I can return bf.readLine() response as follows. {"status":true,"data":[{"COUNT":"0"}]} Problem is when I assign the bf.readLine() to String and check the value, it becomes null. Why bf

Reading from a CSV and it skips every second line. I have two CSV files, one for users, one for properties - the key ID is user. String userName; static String breakLine = "\n--------------------\n"; /** * Method to create a new user in a CSV File * @param sFileName * @param user */ static void writeToCsvFile(String sFileName, User user) { try { FileWriter writer = new FileWriter(sFileName, true); writer.append(user.displayUserName()); // get username from userinput writer.append(","); // tabs to next record writer.append(user.getPassword()); //gets password from userinput writer.append(",");

BufferedReader.readLine() do not read and hang the system(wait) . InputStream istrm = runtimeProcess.getInputStream(); InputStreamReader istrmrdr = new InputStreamReader(istrm); BufferedReader buffrdr = new BufferedReader(istrmrdr); System.out.println("4"); String data; String st; System.out.println("4a"); while (!(st=buffrdr.readLine()).isEmpty()) { System.out.println("5 in loop"); } You need to continually read from the processes input stream to ensure that it doesn't block. Read this : http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html The point is this line while (!(st

Many people asked question like that but this one is a little bit different. Here is the code: public static BufferedReader reader; public static String readString() throws IOException { reader = new BufferedReader(new InputStreamReader(System.in)); String s = reader.readLine(); reader.close(); return s; } While program runtime readString method is invoked many times. The second call causes exception: stream closed . I can not understand: why it ends up so? Every time we declare new BufferedReader . So the stream must be also new. Or not? If not, how should I organize my program so that it

The objective is to count distinct words from a file. UPDATE: Previous Code was successfully finished. Now I have to do the same but using threads (Oh man, I hate them...) and in addition I want to make it with semaphores for better flow. Code contains some extra stuff left out from previous attempts, I'm trying to figure out what can be used.. I can read one word at a time but mostly I get a "null" in the container. So until I get anything from the container all the time I can't test the Sorter class and so on... The new addition to the program is WordContainer class to store one word to pass