1. ObjectInputStream Error stackoverflow.comI am using ObjectOutputStream to create a file of serialized objects. I then use an ObjectInputStream to with the readObject() method to get the objects back out of the file. It ... |
2. OutputStream delete file contents JAVA stackoverflow.comI have files in who i need to record serialized object. I open ObjectOutputStream for writing in files. If i didnt wrote nothing in file, file content get deleted. I don't ... |
3. Use ObjectOutputStream and FileOutputStream with FileWriter stackoverflow.comIs there any way to use |
4. java: keep tracking of file size on the run? stackoverflow.comI wrote a code that writes compressed objects into a file, My questions is: is there a way that I could keep track of the increment of size of my file ... |
5. Can't Cast a POJO after ObjectOutputStream stackoverflow.comI have a program that sends POJO from a server to a client. For primitive data types like |
6. ObjectOutputStream bytes.comMiziaQ I have this code to write to a file. However, this only saves one entry. How can I save multiple entries, each saved in separate lines ? At this point ... |
7. ObjectOutputStream coderanch.comMy code produces a text file based on a string. However when I run the code, i get some unexpected characters prepended to the string. relevant code... String test = new String("hope"); ObjectOutputStream oos = new ObjectOutputStream (new FileOutputStream("results.txt")); oos.writeObject(test); oos.close produces the following text in the results.txt file t hope any reasons for the above, and any ways to ... |
8. ObjectOutputStream? coderanch.com |
9. ObjectOutputStream,readObject I/O error coderanch.comWell I've seen postings for this problem everywhere but no real solution so I decided to give it a shot. I'm using readObject to deserialize an object sent through a socket. The first read blocks and works fine but once the first object is read from the stream the readObject starts throwing "java.io.EOFException: Expecting code" which is not really a problem ... |
10. ObjectOutputStream -- Error. coderanch.comHi, I am using objectoutputstream to read/write the contents of an array to the file. I dont get any problem if i read the file but i am encountering the following error when i try to read from the file. Reading from ObjectOuputStream java.lang.ClassCastException: [LPatient; at Ward.main(Ward.java:368) Any help is appreciated. Following are the two class files that i have been ... |
11. problem with ObjectOutputStream & webstart coderanch.comHi friends I have a problem with an app designed to use Webstart at the client side and j2EE at the server ... look at this part of code : //sendRequest define URL to connect... URL myURL = new URL("http://myServer:8080/myApp/servlet/" + ServletName); URLConnection urlConn = myURL.openConnection(); urlConn.setDoInput(true); urlConn.setDoOutput(true); //write data ObjectOutputStream outputToServlet = new ObjectOutputStreamur(Conn.getOutputStream()); //sendRequest write... outputToServlet.writeObject(context); // context is ... |
12. Bug in ObjectOutputStream coderanch.comThis code demonstrates that ObjectOutputStream may not write the current contents of an object. We initialize an array to [null] and write it to an output stream. Then we change the value of an array element to a non-null value, and write it again. This program demonstrates that [null] is again written, instead of the current contents of the array. import ... |
13. ObjectOutputStream not working coderanch.comthe first code sample is in my actionPerformed() method. the user can add a new file extension and short description that will show up in the JTable beside each file on their system. I have tested a printout after the line "list.put(extension, description);" and the two Strings are added to the list. the OutputStream method further below does not write the ... |
14. Using ObjectOutputStream....but want to switch coderanch.comI'm currently using an ObjectOutputStream to write the contents of my vector to text file. The vector contains objects created from a class hierarchy which implements serializable. Since serializable objects create a binary-format file (which is unreadable), how can I go about using PrintWriter to write out all the objects my vector contains? I'm completely new to all of this, but ... |
15. What comes out of the ObjectOutputStream is not what goes into the ObjectInputStream coderanch.comHey all... hope this is the right place to put this, I'm new to the forum. Only started using it this semester as I go through my Java class! I have an odd question... I'm building a client/server Java application to give polls and suchlike. Someone can user the server to set the details in a complicated object (VatingSet). This object ... |
16. ObjectOutputStream . defaultWriteObject() coderanch.com |
17. how FileOutputStream and ObjectOutputStream working here coderanch.comhello ranchers please explain me how the FileOutputStream and ObjectOutputStream working in the following code.. import java.io.*; class Player { Player() { System.out.print("p"); } } public class CardPlayer extends Player implements Serializable { CardPlayer() { System.out.print("c"); } public static void main(String[] args) { CardPlayer c1 = new CardPlayer(); try { FileOutputStream fos = new FileOutputStream("play.txt"); ObjectOutputStream os = new ObjectOutputStream(fos); os.writeObject(c1); ... |
18. about private void writeObject ( ObjectOutputStream os ) coderanch.comHow do these methods work ? The serialization and deserialization of the object works fine without private void writeObject ( ObjectOutputStream os ) / read object methods. However when I add them , i get a run time error as Exception in thread "main" java.io.IOException: No such file or directory at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:260) at java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1682) at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1591) at java.io.ObjectOutputStream.writeNonProxyDesc(ObjectOutputStream.java:1173) ... |
19. Stuck between TimerTasks and ObjectOutputStream...(i think) coderanch.comA friendly place for programming greenhorns! Register / Login Java Forums Java Java in General Stuck between TimerTasks and ObjectOutputStream...(i think) Post by: Prashant Sehgal, Ranch Hand on Sep 12, 2007 10:18:00 Hi, I've been banging my head against this for almost two days and am now out of ideas and stamina! There's much more code than I'm putting ... |
20. ObjectOutputStream coderanch.comHi! I 'm trying to use an ObjectOutputStream object to output some objects to a file named "AfterTrans.init". The code below is the one I am using. For some reason, IO exception is being caught. By the way, 'Account' is a class defined by myself and 'AccountList' is a vector of 'Account' objects. Also, the class 'Account' implements Serializable and I ... |
21. What comes out of the ObjectOutputStream is not what goes into the ObjectInputStream coderanch.comHey all... hope this is the right place to put this, I'm new to the forum. Only started using it this semester as I go through my Java class! I have an odd question... I'm building a client/server Java application to give polls and suchlike. Someone can user the server to set the details in a complicated object (VatingSet). This object ... |
22. ObjectOutputStream?zipOutputStream? forums.oracle.com |
23. compressing bytes to send in objectoutputstream forums.oracle.comi am currently compressing a byte[] to send over the internet. i have used the deflater.best compression, but haven't noticed any performance increases. when no compression happens it takes a little longer over the internet to reach it's destination. when doing compression it takes longer for the compression/decompression to happen that it adds to the overall time, making it equal in ... |
24. Append with ObjectOutputStream? forums.oracle.comWell this is just a wild guess but it is just barely possible that when he says 'that file might already have data in it' he means that he wants to preserve it, which is what most people want to achieve when they append to files, and he is assuming that the mild inference is reasonably obvious. After all even I ... |
25. make sure objectoutputstream is open before objectinputstream forums.oracle.comIf I am not mistaken the objectoutputstream must be opened before the objectinputstream is for the connection to be made correctly. My task is to send an array from one computer to another through a socket, do some calculation then send back the calculated array. So I need to have communications both ways. I am running into problems with the connection ... |
26. ObjectOutputStream=null forums.oracle.com |
27. zipOutputStream or ObjectOutputStream? forums.oracle.com |
28. closing FileutputStream and ObjectOutputStream, which order? forums.oracle.com |
29. ObjectOutputStream writeObjects not GC'ed forums.oracle.comHi All, My class in a Java application has a static member ObjectOutputStream. This static member writes Objects into a file and are reset now and then. However there is a memory leak here. The objects that are written to a file are handler objects. These handlers are CORBA stub objects. When I closely monitored the heap these handlers were growing ... |
30. Bizzare ObjectOutputStream problem forums.oracle.com |
31. Using ObjectOutputStream forums.oracle.comprotivakid wrote: Hi all, I am having some trouble wtiring my object (Student) to a file. Right now I have it set up as "outputStream.writeStudents(Students);" which I know is not correct as a place holder but how can I do this correctly. I can easily system.out the Student and easily use printWriter however my professor wants me to serialize the object ... |
32. Questions on ObjectOutputStream.PutField forums.oracle.com |
33. JSON or ObjectOutputStream forums.oracle.comHi, I am trying to figure out what is the best way to persist a Bean into a file. I have this program which works with a large set of data (up to say 10 MBytes of data) . I was thinking of keeping these data on Beans member variables and then writing them out to file. So each bean written ... |
34. ObjectOutputStream Issue forums.oracle.comi wanted to know if it was possible to send an object from the serveur to the clien without having to send it through the clien first. or if it's not possible can't i do something like open a data ****** and send the string get and when te server receives the string it sends the object to the client. |
35. ObjectOutputStream forums.oracle.com |
36. Problem using ObjectOutputStream and ObjectInputStream forums.oracle.comDon't use available when reading from a socket. It's fairly useless. Just do the following. Create the ObjectInputStream from the socket InputStream. Call readObject. This will block until the data shows up. You may want to use setSoTimeout on the socket BEFORE you call readObject to specify a length of time to wait. See the API for details. |
37. objectOutputStream holding values. forums.oracle.com |
38. FileOutputStream and ObjectOutputStream help forums.oracle.com |
39. appending ObjectOutputStream forums.oracle.comHi, i'm a student in java and i had to make a guestbook using io streams, the first mistake i made was to try and append Objects using the ObjectOutputStream which I hoped I fixed by overriding the writeStreamHeader() method of ObjectOutputStream, but I still get "invalid type code: AC" when try to read out my guestbook.dat file? Anyone has an ... |