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Replied To a Post in help to compare file with virus signature
It depends on what kind of anti-virus. If you are just scanning files for suspicious content on demand, then Java is perfectly suitable. If, on the other hand, you want … -
Edited virus scanning file ..please help
in the signature based scanning I couldn't understand how to find virus when it is in the body of the file..do i need to compare file content with virus signature … -
Replied To a Post in java
Then write one, and read the Daniweb member rules before posting again -
Replied To a Post in error: class, interface, or enum expected
I don't have access to a PC at the moment, but I suspect the error with the import may have concealed any following error such as two public classes. Certainly … -
Replied To a Post in error: class, interface, or enum expected
Line 30 is an import statement that comes after a class def. that's an error, imports must come at the beginning of the file. -
Replied To a Post in Decrypt data help
0x7F. Or just 127 -
Replied To a Post in Decrypt data help
Java chars are 16 bit UniCode, ans include Hebrew, Arabic, Chinese... all kinds of symbols. Ordinary English text can be encoded in just 7 bits (values 0 - 127 or … -
Replied To a Post in jbotton
English is not your first language? OK. But that sentence does not make sense. Please try to explain with more detail. -
Replied To a Post in Read by chunks from binary with java
There's nothing wrong with new Scanner(File), but line 10 has a new Scanner(Scanner) and that's completely wrong (and unnecessary). Also, the the delimiter is wrong. Your delimiter is not the … -
Replied To a Post in Instant Messenger
Yes, just the usual try/catch structure. Create the ServerSocket inside the try, and catch any `BindException` ps: I'm about to disappear on holiday for a week, so don't be surprised … -
Replied To a Post in Instant Messenger
I don't like the way that connection is updated in different methods - makes it hard to follow its value (especially if connectToPeer is sucessful). Personally I would prefer to … -
Replied To a Post in Instant Messenger
OK, I can see that would work, although you will presumably need some way of updating that file. Remember that if you have two servers in the same LAN behind … -
Replied To a Post in Instant Messenger
Closing it in task manager will do the trick - and just by looking in TM you'll see if there are any ghost instances. How will a new instance know … -
Replied To a Post in Instant Messenger
Don't have a 87 line listing. There's an 81 line listing, but line 18 of that is `whileChatting();` so if that's it, it looks like the same as the other … -
Replied To a Post in Instant Messenger
In that case one needs to be the client and the other the server. You can't do anything with just 2 clients or just 2 servers. If you want to … -
Replied To a Post in Getting confused
so in order to stop that i placed break; keyword yes, but did you see my comment "You probably intended to break after finding a match."? YOur break is after … -
Replied To a Post in elementary java homework
To read lines, just use a BufferedReader's readLine() method. Simpler, handles exceptions properly, no risk of side effects. Did you consider the case where there are multiple 1's and multiple … -
Replied To a Post in Instant Messenger
Are you trying to do the server and the client in the same program? That's going to cause problems. Don't you want multiple clients and one server? Of course, if … -
Replied To a Post in elementary java homework
... except ... Scanner is an overkill way to read lines from a text file and the algorithm you describe is in no way a solution to the requiremnt as … -
Replied To a Post in Instant Messenger
No, no need for any of that at all... just ServerSocket serverSocket = new ServerSocket(... Socket clientSocket; while (true) { clientSocket = serverSocket.accept(); new Thread(new ClientHandler(clientSocket)).start(); } then in the … -
Replied To a Post in Java Graphics: How to make self-typing code
OK You'll need: a Javax.swing.Timer that will run a small method at regular intervals. This is key component that controls the speed of your animation. See the API doc for … -
Replied To a Post in elementary java homework
There are lots of people here who will freely give their time to help you become the best Java programmer you can be. There's nobody here who is interested in … -
Replied To a Post in Read by chunks from binary with java
Is the rest of the file just text? If so, just read the file using a Scanner with your D2A7 bytes as the delimiter https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html -
Replied To a Post in Java Graphics: How to make self-typing code
It looks like you draw all the strings at the same position. You need to draw each string at increasing y coordinates so they appear one below another -
Replied To a Post in Decrypt data help
I see some negative number.that mean is not char? chars are alwaya positive - see tha Java Language Specification WHAT IF people encode only char there is not some wired … -
Replied To a Post in Getting confused
Look at line 33. As soon as you test a name that's not in the very first element of the array you break from the loop and stop looking. You … -
Replied To a Post in Decrypt data help
I would structure it like (pseudo code) for (int key = 0 to 255) { // try every key String decoded = decode(encoded, key) // decode encrypted data using key … -
Replied To a Post in how to get the file signature in java?
I think the original post (with example) is pretty clear that it's the signature in the first few bytes he wants, but yes, you are right that the the Java … -
Replied To a Post in Instant Messenger
You have an initial Thread that is a simple loop waiting for new connections to the ServerSocket. When it gets one it opens a Socket and hands that over to … -
Replied To a Post in Decrypt data help
You will need to know something about the file so you can see if it decrypted correctly. Many file types have a standard header ("magic number") at the start, eg … -
Replied To a Post in to build a java multiple math game
What I described is a highly over-simplified version of "use case modelling", which is often used as the first step in specifying and designing object-oriented software. I use this in … -
Replied To a Post in Easiest way to implement this in Java
I doubt that you will sensibly find a better approach than parsing into some kind of RPN then evaluating it from the resulting stack. 100+ lines of code sounds pretty … -
Replied To a Post in to build a java multiple math game
Write down a brief description of what the game is - its rules etc. Write down a few examples of how it would look when a user uses it. (Use … -
Replied To a Post in random array i need help
You just copy/pasted your assignment without even a moment taken to explain what help you need. That's highly disrepestectful to the many people who give their time to help others … -
Replied To a Post in Decrypt data help
If there are only 256 possible keys, just try each one in a loop until you get one that works. -
Replied To a Post in I Cant get the Scrollbars in JPanel, which is placed in JDialog
Line 39, l2 is uninitialised, so its value is `null` - you create the scroll pane with null as its content Lines 42,43 you initialise l2, but it's too late. -
Replied To a Post in How to perform calculation in java
That's not enough information for anyone to help. You need to post the whole code, and the complete text of any error messages. If there are no error messages but … -
Created Why should I learn Java?
[This article](http://lifehacker.com/the-top-programming-languages-ranked-by-job-demand-po-1601752302) will give you at least one good reason... -
Replied To a Post in Draw graphics on label click
Oops! My mistake... I forgot that \n doesn't work in the drawString method. Sorry about that. The simplest solution is to keep the \n characters separating the lines, and add … -
Replied To a Post in Draw graphics on label click
That's because you replaced the original text - you didn't add it like I said lozinka = lozinka + "\n" + "ASDFGHJKL"; -
Replied To a Post in Draw graphics on label click
You could try adding the new text to whatToDraw, instead of replacing its previous value. Use a newline character "\n" to start a new line. -
Replied To a Post in Draw graphics on label click
sigh... No, more like String whatToDraw = "Verificiranje na akauntot !"; public void paint(final Graphics g) { ... g2.drawString(whatToDraw, 20, 130); } private void jLabel3MouseClicked(java.awt.event.MouseEvent evt) { whatToDraw = "This … -
Replied To a Post in Draw graphics on label click
If you don't yet know how to create String variable then there's no way you should even think about Swing events or painting. You need to go back to the … -
Replied To a Post in Draw graphics on label click
Java will call your paint method when necessary. You can use the repaint() method to let Java know that a new paint is needed. Instead of the literal on line … -
Replied To a Post in reading an unknow ascii key
The game "Scrabble" needs a list of valid English words. If you search the web you will find downloadable files with suitable word lists. -
Replied To a Post in how to get the file signature in java?
Those are the first bytes in the file, yes? Just open a FileInputStream with that file and read the first 4 bytes into a 4 byte array where you can … -
Replied To a Post in Question
I'm not going to say it again... -
Replied To a Post in Question
"now it works"? With the data you just posted there's no way permissions[operation] will fail with operation == 4. Anyway, earlier you said permissions[0] gives "Alice", but that data is … -
Replied To a Post in Update objects on the "Client side" from the "Server"
I have absolutely no idea where that code is going! You have something called "model" but it's an instance of "GUI" and has table layouts and some such. That seems … -
Replied To a Post in Question
I keep saying "print the permissions array"! It's obviously not what you expect, but if you see what it really is then you can work out why it's wrong.
The End.