I do something wrong when I try to create a file.

I work with binary files, try to make a log file and I get this error

java.io.FileNotFoundException: log.dat (No such file or directory)
     at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(FileInputStream.java:106)
     at Servidor.XServer.log(XServer.java:186)
     at Servidor.XServer$nwc$readLine.run(XServer.java:312)

This is because the file is not created, but I do not know why, here is my code, I try to create.

     /// ANADIR EVENTOS AL ARCHIVO LOG // ADD EVENTS TO LOG FILE
     int log(String arg[], String ip , String voto){
          File file = null;
         if (file == null) {
             System.out.println ("Default: log.dat");        
             file = new File ("log.dat");     //    why it isn't creating the file?
         }
         // Now write the data to the file.
         
         try{

              FileInputStream file_input = new FileInputStream (file);
             DataInputStream data_in    = new DataInputStream (file_input);

             String iptmp ="";  // ip tmp
             String vot1=null;          // vot 1er lugar tmp
             String vot2=null;        // vot 2do lugar
             int itmp=0;          // intentos tmp
             
             while(true){
                try{
                  iptmp= data_in.readUTF();
                  vot1= data_in.readUTF();
                  vot2=data_in.readUTF();
                  itmp=data_in.readInt();
                            
             DataOutputStream data_out = new DataOutputStream (new FileOutputStream (file));
             
             voto=(voto.substring(0, 1)+chart.get(Integer.parseInt(voto.substring(1, voto.length()))));
                       // SI EL IP YA VOTO POR EL PRIMER EQUIPO (ERROR EN VOTO) 
                    if (iptmp.equalsIgnoreCase(ip) && vot1!=null && voto.startsWith("1")){
                         data_out.writeInt(itmp+1);
                         return(-1);
                         
                    }
                    
                    // SI EL IP YA VOTO POR EL SEGUNDO EQUIPO (ERROR EN VOTO)
                    if (iptmp.equalsIgnoreCase(ip) && vot2!=null && voto.startsWith("2")){
                         data_out.writeInt(itmp+1);
                         return(-1);
                    }
                    
                    // SI UN IP NO HA VOTADO POR EL PRIMER LUGAR     
                  if (iptmp.equalsIgnoreCase(ip) && vot1==null && voto.startsWith("1")){
                      
                     data_out.writeChars(ip);  // ip
                     data_out.writeChars(voto);   // voto por primer lugar
                     data_out.writeInt(itmp); // intentos de votos
                  }  
                     // SI UN IP NO HA VOTADO POR EL SEGUNDO LUGAR
                  if(iptmp.equalsIgnoreCase(ip) && vot2==null && voto.startsWith("2")){     
                     data_out.writeChars(ip);  // ip
                     data_out.writeChars(voto);   // voto por segundo lugar
                     data_out.writeInt(itmp); // intentos de votos
                  }
                  data_out.close();
                  
             }catch (EOFException eof) {
                         System.out.println ("End of File");
                         break;
             }
                  data_in.close();
             }
        
         } catch (IOException e) {
               e.printStackTrace();
          }
          return 0;
       
     }

Could you help me with this? I don't see what the problem is I'm following the example of the oracle / java tutorial and I can't see what is different

Adolfo R. says:
     /// ANADIR EVENTOS AL ARCHIVO LOG // ADD EVENTS TO LOG FILE
             file = new File ("log.dat");     //    why it isn't creating the file?
Could you help me with this? I don't see what the problem is I'm following the example of the oracle / java tutorial and I can't see what is different

A file object is the path pointing to something on a file system. That something does not exist and create the file is not created automatically (how it whether to create a file or folder?).

To check if it exists, file.exists (of use) and you might also want to check isFile(). They're not together, you cannot read him.
Also, you have to at least close the stream a finally block. You seem to close the stream after the first loop, and then try to re-read so ><>

Tags: Java

Similar Questions

I am hving wrong when I try to sync (Tungsten E2) to my computer. My computer has Windows 7.

I am hving wrong when I try to sync (Tungsten E2) to my computer. My computer has Windows 7. Anyone know a solution for this problem?

Probably, the problem is that you have a 64-bit version of Win7.

At the top of the list of the messages in this section, you will find a title "64-bit Windows USB drivers for Palm Desktop."

Please read this post and follow the directions to install the drivers of the company Aceeca.

WyreNut

Siri: "sorry, there is something wrong. Please try again. »

Whenever I ask Siri play a playlist of music, to play a station of Podcasts to create a reminder, etc, etc, she invariably responds: "sorry, [my name], there is something wrong." Please try again. "Verification of the work of sports scores. Audit of the work of the stock indices. But it seems that any request fails if it comes to interact with any Apple application.

This seems to be a problem with siri is not able to do some cloud connection it takes to really work, a turned network reset everything back to normal, by restarting and running as the most recent update made no difference

Process Explorer error BES when you try to browse the files and folders; and Internet Explore AppHangB1 when you try to attach files to download in Windows 7.

Hi everyone, auggy,

I really hope you can help me with a problem I have on a single workstation at my office. It is an accumulation of 32-bit Windows 7 running MS Office 2010 Standard. It differs from other generations in our office because it is used by the head of the team of our accounts, and so it has a number of custom pieces of software that she only needs access (payroll software, etc.).

All the basic features of the computers seem to be well, except the two following, and I would really like to help get to the bottom of it.

(1) process explorer error when you try to browse the files and folders of BES.

I can call Windows Explorer absolutely perfect and be sailing away on his machine, and then suddenly the process explore will die, with the following error: -.

Signature of the problem:

Problem event name: BEX

Application name: explorer.exe

Application version: 6.1.7601.17567

Application timestamp: 4d6727a7

Fault Module name: StackHash_0a9e

Fault Module Version: 0.0.0.0

Fault Module Timestamp: 00000000

Exception offset: 03e2f944

Exception code: c0000005

Exception data: 00000008

OS version: 6.1.7601.2.1.0.256.48

Locale ID: 2057

Additional information 1: 0a9e

More information 2: 0a9e372d3b4ad19135b953a78882e789

Additional information 3: 0a9e

Additional information 4: 0a9e372d3b4ad19135b953a78882e789

Read our privacy statement online:

http://go.Microsoft.com/fwlink/?LinkId=104288&clcid=0x0409

If the online privacy statement is not available, please read our offline privacy statement:

C:\Windows\system32\en-US\erofflps.txt

I can start windows Explorer, and it will happen again--it's a repetitive event.

(2) Internet Explorer AppHangB1 when you try to attach files to download

I think that these two errors may actually be related, like IE (and Chrome as well by the way, this be why I think that the two issues are related) works fine, until I just any type of site where I need to download a file. This happened in the light, as our Chief of accounts needs to download a flat file in a room online banking software. What's going to happen (and, again, this can be repeated as needed) is: -.

(a) you need to click on which will generally be a "Browse" button

(b) a traditional dialog box opens, but instead which allows you to navigate to the location and select the folder you want, he immediately greys out as if the process explore is falling.

(c) shortly after, the following error is returned: -.

Description:

A problem caused this program blocking interact with Windows.

Signature of the problem:

Problem event name: AppHangB1

Application name: iexplore.exe

Application version: 11.0.9600.16521

Application timestamp: 53114399

Hang Signature: ffae

Hang Type: 513

OS version: 6.1.7601.2.1.0.256.48

Locale ID: 2057

Signing of additional blocking 1: ffaeadd6649c2780023c6d9ea230850d

Signing of additional blocking 2: e32d

Signing of additional blocking 3: e32d1064528f9bd1cbe46cdd0db7b0f1

Signature of blocking additional 4:0498

Signing of additional blocking 5: 0498e046eb6db4d68a7cd9b11dab2644

Signing of additional blocking 6: effb

Signing of additional blocking 7: effb796b5c1ff7f6708d2722fa7c24bd

Read our privacy statement online:

http://go.Microsoft.com/fwlink/?LinkId=104288&clcid=0x0409

If the online privacy statement is not available, please read our offline privacy statement:

C:\Windows\system32\en-US\erofflps.txt

On auggy recommendation, I've set up a registry key insert that returns the explorer.exe hangs in a dump file, and I am trying to load two reports on SkyDrive - I'll post the URL in this thread as soon as I finished it.

Can someone help me please?

Thank you very much!!

David.

Hi auggy, Andy,.

Well... in a way, I am very disappointed, but we will respond to it.

Andy, I checked and iCloud, Control Panel has not been installed on its terminal, but thank you very much for suggesting it :)

auggi, when I got back on my colleague's PC, I thought I would test to see if the feature didn't always before considering saving data dumps etc, and it worked fine!

I left it overnight with instructions for the lady who uses the PC to test this morning and see if it's all workers, and it is still, it seems that the fix does not immediately solve the problem of browser, but there later - maybe after a second reboot or something... very strange!

In all case, this matter can now be considered closed, so all that remains for me to say thank you very much for your help, you are amazing :)

All the best, very, very,.

David.

When I try to create an account, I get a: = 403 Forbidden error

I'm setting up eprint for my new Oggicejet HP 6700 Premium. When I try to create an account, I get the error of the object (403). What I am doing wrong?

Hello

Please try another web browser, OR clear all the cache, history and cookies, then try again.

Kind regards.

Why information from individual PDF files that were created by using the form to fill out is changing when I try to combine the files?

I have several pdf documents created using a form to fill out. When I try to create a combined PDF information either is removed from all pages after the first page or all the pages after the fact look page 1 as duplicate page 1. what I am doing wrong?

The problem is that these files have fields with the same name in them, thus

When you merge them they become copies of each other and of all their

the values are the same.

To avoid it you must either rename the fields before you merge the files

or flatten, converting them to static content.

The game, March 24, 2016 at 22:00, peggyp13342216, [email protected]>

Error no valid identifier when you try to create a trigger

Hi all

I get this weird error when you try to create a trigger. Basically, it updates a table of different relationship on INSERT or UPDATE.

The error I get is:
* PL/SQL: ORA-00904: "cid": invalid identifier *.

SET SERVEROUTPUT ON
CREATE or REPLACE TRIGGER UPDATE_REL_TABLE 
     AFTER INSERT OR UPDATE ON XF_PROJECT_CODE
FOR EACH ROW 
DECLARE
     customer_count NUMBER;
     n_cid NUMBER;
BEGIN 
     -- CHECK if company exist
     SELECT COUNT(*) INTO customer_count FROM XF_CLIENTS WHERE UPPER(client_name) = UPPER(:NEW.company);
     
     CASE 
     WHEN customer_count > 0 THEN
          -- GET CUSTOMER ID
          select t.cid INTO n_cid FROM XF_CLIENTS t WHERE t.CLIENT_NAME = :NEW.company;   // ERROR HERE!!
          
          -- UPDATE relationship table
          INSERT INTO XF_CLIENT_CODE_R (PROJECT_CODE_ID, cid) VALUES (:NEW.project_code_id, n_cid);
     
     ELSE
          -- customer does not exist
          n_cid := XF_CLIENTS_SEQ.NEXTVAL;
          
          -- Create client
          INSERT INTO XF_CLIENTS(cid, client_name) VALUES(n_cid, :NEW.company);
               
          -- update relationship table
          INSERT INTO XF_CLIENT_CODE_R(project_code_id, XF_cid) VALUES (:NEW.project_code_id, n_cid);
          
     END CASE;
END; 
/
SHOW ERRORS;

The column exists and matches the data type (number). Any help appreciated. bit at loss where I'm wrong.

Good fishing! Who'd do all right.

42 error code when you try to delete the file

PDF file which can be opened and read. However, when you try to delete the file, error file not found 42 made its appearance. MacBook Pro computer

Please relaunch the Finder , and then try again. If there is no change, restart the computer.

Firefox crashes when you try to attach a file to gmail compose

Laptop Vista 32. When you try to attach a file to a gmail account, compose explore dialog and then firefox crashes. Happens every time and began (I think) with the 16 or 17 years old version. Updated plugins, crossed of troubleshooting on the Help menu, I tried safe mode. All to nothing does not. IE works fine.

After reviewing all services and startup programs using msconfig, I've isolated the problem to a conflict with Dell Media Center in starting. I deleted the software (preinstalled on your laptop) since I never use anyway, re-enabled the acceleration hardware Flash and deleted the line mode protected in the file flash cfg.

NO MORE CRASHES when you try to attach a file to a message in gmail!

Thanks for all your help - could not have corrected it without you.

Error message when I try to create or reproduce a numbers document.

When I try to create or reproduce a numbers document, I get the following error message:

'Untitled.numbers' could not be moved, because you don't have the permission to access the 'Documents '. To view or change permissions, select the item in the Finder and choose file > read the information.

So far, I have never had a problem creating or duplicating a numbers document. I don't understand why I get this error. Can someone please help me fix this so that I do not continue to have this problem. Please note that documents Pages works fine.

Hi stelcon,

I see that you encounter some problems with the permissions on your Mac running El Capitan. I have two articles for you who will guide you through the following steps to resolve this problem:

Set permissions for the items on your Mac OS X El Capitan:

https://support.Apple.com/kb/PH21997

OS X El Capitan: If you do not have permissions to open a file or folder

https://support.Apple.com/kb/PH22196

Thank you for coming to Apple Support communities!

Satellite U205-S5034 - error when you try to create the recovery disks

Hello world

I have problems with the TOSHIBA recovery disk creator. When you try to create the recovery disks this error pops up:
An unexpected error has occurred. Exit this application and start it again. (Error code: F1-0F00FE-00000002)

The machine is a Satellite U205-S5034 under XP Pro SP3.

Any help will be greatly appreciated. Thank you and have a nice day.

DaveMatt44

Hello

What kind of DVD that you use to create a Toshiba Recovery disk? I have tried Verbatim DVD-R and TDK DVD-R and never had a problem with these discs. A friend tried DVD + R and he couldn t create a recovery disk. After he tried DVD-R and everything was fine but I do not know why this happened.
So please try other discs.

Also, check the Toshiba page for an update of the firmware of the CD/DVD drive. Maybe it will help you.

Photo Story 3 cannot join the audio of the video program, get the error message, even when you try to select the files audio mp3

Photo Story 3 impossible to join several video (audio) to program songs that has been created, an error message that it cannot accept the format audio, even when you try to select the files mp3 audio.

Hi BeverlyHeuer,

I suggest that you convert the music file to convert it into .wav format and check if you can contact.

Photo Story 3 for Windows: frequently asked questions

http://Windows.Microsoft.com/en-us/Windows-XP/help/digitalphotography/photo-story-FAQ

When you try to transfer a file of 8 GB on external hard drive 'file too large for the destination system message' to get there is that much space on disk

When you try to transfer a file of 8 GB on external hard drive 'file too large for the destination system message' to get there is that much space on disk

Hello

Discs formatted with the FAT be limited to files with a maximum of 4 GB. You can format outside
drive drive with NTFS, contact the manufacturer if necessary pilot or split the file into parts under
at 4 GB.

Overview of FAT, HPFS, and NTFS file systems
http://support.Microsoft.com/kb/100108

How to go beyond the limit of 4 GB on FAT32
http://lazybit.com/index.php/2007/03/01/how_to_get_over_the_4gb_limit_fat32

-------------------------------------------------------------------------------------------------------------------------

The ZIP file and then divided the ZIP which helps maintain the integrity of sharing files and restoring.

Zip and Split - free
http://zipandsplit.toolazy.me.UK/

Split and Zip - free
http://www.jtoolgame.com/tools/splitzip.html

Akhir Split Zip - free
http://www.mydigitallife.info/2009/04/24/Akhir-split-zip-splits-files-into-smaller-zip-files/

I hope this helps.

Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

I can not burn CD when I try to burn a file to a CD, the system does not recognize that I have a CD in D drive.

Original title: I can not burn CD

I can down load soft ware, playing CDs; s & DVD, but when I try to burn a file to a CD, the system does not recognize that I have a CD in D drive. How to fix this?

Hello

1. have you tried using different CD and check?
2. were you able to burn CDs without any problem earlier?
3. have you made changes on the computer before this problem?

The hotfix in the following article might help you.
Your CD or DVD drive cannot read or write media
http://support.Microsoft.com/mats/cd_dvd_drive_problems/

I have windows professional xp and when I try to attach a file to an e-mail or even see where I saved them they do not appear.

Original title: WINZIP HELP

I have windows professional xp and when I try to attach a file to an e-mail or even see where I saved them they do not appear. I'm looking for all THE files, but no zipped files are there. Help, please!

Hello

1. What mail client do you use?

I suggest you to check if the files are hidden:

http://www.Microsoft.com/resources/documentation/Windows/XP/all/proddocs/en-us/WIN_FCAB_SHOW_FILE_EXTENSIONS.mspx?mfr=true

Also check out this link:

http://support.Microsoft.com/kb/306531

It will be useful.

I do something wrong when I try to create a file.

Similar Questions

Maybe you are looking for