bufferedreader

How can I load txt file from internet into my jsf app?

Hi all! It's me again) I have another problem. I want to load file (for example - txt) from web. I tried to use the next code in my managed bean: public void run() { try { URL url = new URL(this.filename); URLConnection connection = url.openConnection(); bufferedReader = new BufferedReader(new InputStreamReader(connecti...

StringBuffer wont read whole stream into a string (JAVA/Android)

Hi all! I'm making an android program that retrieves content of a webpage using HttpURLConnection. I'm new to both Java and Android. Problem is: Reader reads whole page source, but in the last while iteration it doesn't append to stringBuffer that last part. Using debbuger I have determined that, in the last loop iteration, string buf...

Data persistance with BufferedReader and PrintWriter?

I have this simple application with a couple of classes which are all related. There's one, the main one, for which there is only one instance of. I need to save save and load that using a text stream. My instructor requirement is BufferedReader to load the stream and PrintWriter to save it. But is this even possible? To persist a data ...

Reading from large, continuously growing file with BufferedReader

The task I have is to (somewhat efficiently) read line-by-line through a very large, continuously growing file. Here's basically what I'm doing now: BufferedReader rd = //initialize BufferedReader String line; while(true){ while((line=rd.readLine())==null){ try{ Thread.sleep(1000); }catch(InterruptedExcep...

Java BufferedReader action on character?

enter code hereI'm reading a stream from a device in Linux which contains hexidecimal letters and is delimited by "^M". Whenever the device is ready for more information it sends the character ">". The stream looks like this: ^M^M01 02 F3^M00 01 F3 3E^M>" I need to detect the char > and perform an action on that char. Is there a way...

Java BufferedReader not reporting ready when it contains ">"

I tried to ask this question earlier, but I was unclear in my question. http://stackoverflow.com/questions/3239740/java-bufferedreader-action-on-character Here is my problem.. I have a BufferedReader set to read from a device. It is reading well. I have it set to if (Status.reader.ready()) { Lines = Status.reader.readLine(); } ...

how does BufferedReader keep track of what line has been read?

I'm reading lines from a file, and I believe that once I've read all the lines, I get an exception because of my while loop condition. Exception in thread "main" java.lang.NullPointerException at liarliar.main(liarliar.java:79) ... the code... // read the first line of the file iNumMembers = Integer.parseInt(br.readLine().trim()...

IOException in Android application

I have just started with Android development, and facing one issue in the android application. When application tries to read the data from file (raw resources), it throws IOException on readLine() function. code is as below: final Resources resources = m_ApplicationContext.getResources(); InputStream inputStream = resources.openRawRes...

Should I buffer the InputStream or the InputStreamReader?

What are the differences (if any) between the following two buffering approaches? Reader r1 = new BufferedReader(new InputStreamReader(in, "UTF-8"), bufferSize); Reader r2 = new InputStreamReader(new BufferedInputStream(in, bufferSize), "UTF-8"); ...

BufferedReader seems to only read last line of file.

I'm trying to write a method to take a multiline tab-delimited file and return the contents of that file as an arraylist of String arrays (each line is a String[], and each such String[] is an element of an arraylist). My problem is, I can't tell if the output is correct or not. I've printed each arraylist element and String[] element as...

android: how to access ressources in the res/raw directory via BufferedReader

hello, i save some ressources in the res/raw directory which i then would like to read with my custom loader. how can i do this? ideally i would get a BufferedReader on them. thanks! ...

Character corruption going from BufferedReader to BufferedWriter in java

In Java, I am trying to parse an HTML file that contains complex text such as greek symbols. I encounter a known problem when text contains a left facing quotation mark. Text such as mutations to particular “hotspot” regions becomes mutations to particular “hotspot�? regions I have isolated the problem by writting a simple text...

files no longer readable.

Hello, I have a Java project which has this file structure (shown in Eclipse): ProjectName +- Deployment Descriptor: ProjectName ¦- Java Resources:src ¦- Package1 -MyClass.java ¦- FileFolder -MyFile.txt And so far from myClass I'm able to read MyFile.txt using: try { reader = new BufferedReader(new FileReader(new Fil...

Clojure/Java: Most effective method for minimizing bandwidth consumption when performing complex operations on a stream of Amazon S3 data

Hi All, I'm performing streaming reads of an object using BufferedReader. I need to do two things with this object: Pass it to a SuperCSV csv reader Obtain the raw lines and keep them in a (Clojure) lazy sequence Currently, I am having to use two different BufferedReaders: one as an argument to a SuperCSV CSV reader class and one t...

Best practice for reading until a marker with sockets (Java)?

Hello I'm creating a mobile app to run on a phone and trying to read data from it in the most efficient way. The application will send data to my server app (in the form of bytes, not necessarily characters). I won't know the length of the data; the end will be marked with a 3 byte marker (i.e. 0x11,0x22,0x33), and then a new set of da...

Problems with my program involving arraylists, bufferedreader, methods, and overall forgetfullness of how java works.

Hello everyone. I am having difficulties with a program that I have been working on all day. I am trying to read a text file and read each line one at a time. Take that line and make an arraylist of the words of the line. then using the index of the arraylist define terms with it. public class PCB { public static void main(Strin...

why doesn't my client read correctly the outputStream sent by the Server?

Hi guys. It's a simple client-server where Server using a BufferedWriter object would send to the Client receiving in the object BufferedReader. When I use OutputStream and PrintWriter for the Server and InputStream and Scanner for the Client it works well. What happens is that the client in Buffered way reads -1 if I'm sending an i...

Trying to get each line of a text file to be an arraylist

alright so I am trying to read a text file. and then split it up into lines which actually represent processes in a process table arraylist. then i want to split up all the tokens in the line and make all the tokens of the line an arraylist again so far this is all i have: its not working correctly. i am getting: processes:[[netscape,...

How do I read a file again using buffered reader in Java?

I have a Java code that reads through an input file using a buffer reader until the readLine() method returns null. I need to use the contents of the file again indefinite number of times. How can I read this file from beginning again? ...

getting null when reading a text file in java using buffered reader

I'm having a problem reading a text file in java and assigning it to an array. The program is running but I'm getting null. I tried changing the code to its simplest for just like what you see below. Because this one should really loop through the text file. But I'm doing it this way so that I will easily see where's the problem. But the...