dataoutputstream « API « Java I/O Q&A





1. java DataOutputStream exception SOLVED    stackoverflow.com

The exception is thrown in line 24 the second time I type something (after I have typed the host name) - server works right. Code

import java.io.*;
import java.net.*;

class TCPclient {
   ...

2. java DataOutputStream getOutputStream() getInputStream()    stackoverflow.com

one question in the case for example of

DataOutputStream output= new DataOutputStream(clientSocket.getOutputStream()) ;
or
DataInputStream in = new   DataInputStream(clientSocket.getInputStream());
must these objects to be created each time i need an I/O operation ...

3. PrintWriter vs DataOutputStream, weird behavior    stackoverflow.com

I'm creating a server/client model to send an image file from the server to the client. There's only ONE socket involved (all data are sent through it).
The server first sends ...

4. Weird outputs while using DataOutputStream    stackoverflow.com

I'm using DataOutputStream of Java IO in order to write to a file but when I execute the program, I don't get the correct output, instead, I get weird characters. -Although ...

5. sending a file using DataOutputStream in java    stackoverflow.com

I am trying to build a client that sends the file size and contents to server. I am trying to use DataOutputStream. I am assuming that I need to open the file and ...

6. Why does DataOutputStream.writeUTF() add additional 2 bytes at the beginning?    stackoverflow.com

When I was trying to parse xml using sax over sockets I came across a strange occurence. Upon analysing I noticed that DataOutputStream adds 2 bytes in front of my data. Message send ...

7. new DataOutputStream(new FileOutputStream(f)) VS new DataOutputStream(new BufferedOutputStream(new FileOutputStream(f)))    stackoverflow.com

The code at Java Tutorials showed an example of using DataOutputStream class and DataInputStream class. A snippet of the code looks like this:

//..
out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(dataFile)));
//..
in = new ...

8. DataOutputStream    coderanch.com

Help please, I would like to write my String password to the "Password.dat" file the way so when I open this file it is not readable. I mean so far when I do the following code I can open "Key.dat" with Notepad and read it. Thank you. String directory = "c:\\Source\\"; String fileName = "Password.dat"; String password = "password"; File file ...

9. DataOutputStream problem    coderanch.com

Well using dos.writeInt() will be more efficient, I'm pretty sure, but it's one of those situations where it's very unlikely you'll ever notice a difference unless you're writing a lot of data. Generally, the most important factor is how will you parse it? Using readInt() is pretty simple, if the data was written with writeInt(). Parsing text data can be more ...





10. Beginner question: having DataOutputStream and RandomAccessFile    coderanch.com

Hi, Is it ok to have DataOutputStream and RandomAccessFile both accessing the same file? I'm having: File f = new File("myfile.txt"); DataOutputStream dos = DataOutputStream(f,true); RandomAccessFile raf = RandomAccessFile(f); I'm actually doing my assignment, and I'm not sure whether doing the above is a good thing. But I do need to append to the file and also do a random access ...

11. DataOutputstream writeshort doesnt work    coderanch.com

Hi, I am trying to use the dataoutputstream and the writeshort method to write to a file, but everytime I use it, it just right a small square to the file instead of the number. Heres my code: public class Test { public static void main(String[] args) { try { FileReader fileReader = new FileReader(args[0]); BufferedReader reader = new BufferedReader(fileReader); FileOutputStream ...

12. Query regarding implmentation of writeXXX operations in DataOutPutStream    coderanch.com

I am getting familiar serialization API's in JDK. I have a simple question regarding implementation of java.io.DataOutPutStream writeXXX operations. Here is the implementation for this API /** * Writes an int to the underlying output stream as four * bytes, high byte first. If no exception is thrown, the counter * written is incremented by 4. * * @param v an ...

13. DataOutputStream / WAVE steganography    coderanch.com

A friendly place for programming greenhorns! Register / Login Java Forums Java I/O and Streams DataOutputStream / WAVE steganography Post by: Stephen Longville, Greenhorn on Mar 25, 2010 08:14:52 didnt know where else to put this (as i am using the DataOutputStream to write a text file) first off let me say i am aware of javas non unsigned ...

14. Dataoutputstream    java-forums.org

hai friends, im now working with dataoutputstream object.... i wrote the coding for writing the data into a file using dataoutputstream..bt i culd not see the integers wriiten into my file properly using writeInt method...y is it like dat? the code is given below.... import java.io.DataOutputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.*; public class writeint { public static void main(String[] args) ...

15. Question about DataOutputStream    java-forums.org

FileOutputStream sout = new FileOutputStream (f, true); BufferedOutputStream poo = new BufferedOutputStream (sout); DataOutputStream fout = new DataOutputStream (poo); fout.writeUTF ("hej"); //This string should be at the end of ttest.txt //Time to read all this: FileInputStream fi = new FileInputStream (f); BufferedInputStream foo = new BufferedInputStream (fi); DataInputStream fin = new DataInputStream (foo); System.out.println (fin.readInt ()); System.out.println (fin.readInt ()); System.out.println (fin.readChar ...

16. weird character in DataOutputStream file    java-forums.org

Have you read the API doc for the DataOutputStream class and the writeDouble method? Did you read any of the previous posts on this thread that describe what is happening when your code is executed? If not, please do. If you have any questions, about the API doc or the postings please ask.





17. DataOutputStream    java-forums.org

I have a Server / Client relationship that I've built. I have a problem with the client. The server works great. Simple DNS lookup. I have it set so I can telnet into it and it connects fine and immediately returns "Connected to" + serverName. Typically localhost. That's the first line. The second line is "Escape character is '^]'". The server ...

18. how to send a bigdecimal by DataOutputStream    forums.oracle.com

20. Execution halts after DataOutputStream.clos    forums.oracle.com

os.close() This ensures the data has been flushed and accepted by the receiver. This is probably waiting for the other end to read the data, If your sender closes before the data has been read it may be lost or truncated. There is a timeout (which you can set on the socket) for this which may be too long for you ...

21. Strange DataOutputStream file.    forums.oracle.com

Each line in the output is a single piece from artistAlbum[][]. What I do get is: ^@B^@o^@b^@ ^@D^@y^@l^@a^@n^@ ^@1^@9^@6^@6^@ ^@B^@l^@o^@n^@d^@e^@ ^@o^@n^@ ^@B^@l^@o^@n^@d^@e^@ ^@-^@R^@a^@i^@n^@y^@ ^@D^@a^@y^@ ^@W^@o^@m^@e^@n^@ ^@#^@1^@2^@ ^@&^@ ^@3^@5^@ ^@-^@P^@l^@e^@d^@g^@i^@n^@g^@ ^@M^@y^@ ^@T^@i^@m^@e^@ ^@-^@V^@i^@s^@i^@o^@n^@s^@ ^@o^@f^@ ^@J^@o^@h^@a^@n^@n^@a^@ ^@ ^@L^@e^@d^@ ^@Z^@e^@p^@p^@e^@l^@i^@n^@ ^@1^@9^@6^@9^@ ^@I^@I^@ ^@-^@W^@h^@o^@l^@e^@ ^@L^@o^@t^@t^@a^@ ^@L^@o^@v^@e^@ ^@-^@W^@h^@a^@t^@ ^@I^@s^@ ^@a^@n^@d^@ ^@W^@h^@a^@t^@ ^@S^@h^@o^@u^@l^@d^@ ^@N^@e^@v^@e^@r^@ ^@B^@e^@ ^@-^@T^@h^@e^@ ^@L^@e^@m^@o^@n^@ ^@S^@o^@n^@g^@ ^@-^@T^@h^@a^@n^@k^@ ^@Y^@o^@u^@ ^@ As you can see- not the ...

22. DataOutputStream with missing double    forums.oracle.com

How can I use a DataOutputStream when I have missing data? For example, I am trying to convert a CSV file that has a line of data like this: 1.1,1.2, 0.3, , 1.5. The fourth value is missing, but it should be a double (as should all of the fourth values in a row). I can use writeDouble(Double.NaN), but missing data ...

23. DataOutputStream vs PrintWriter?    forums.oracle.com

24. PrintWriter or DataOutputStream    forums.oracle.com