36,051 Topics
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 | What is the difference between [ICODE]inheritance[/ICODE] and [ICODE]object orientation[/ICODE] ? |
| | Hi there, I have this coursework to do and I don't know why my code is not working. Could you help, please? Many thanks. Task 1 You are to develop a UDP server, and Client, capable of transferring a file (worth up to 60% of total available marks for this …  |
| | Hi everyone. First time poster, brand new to java but I like it. I'm comfortable with the very basics but as we move forward I'm starting to struggle. My prof is not very good about explaining things so I've been teaching it to myself mostly. My most recent assignment involves …  |
| | Hey there. At the moment to close a form (like to go back to a previous form) i use this.hide(); But ive read things that some statements "Dont realy close the form, and it still runs or whatever" Is this the rigt way to close one of my forms? And … |
 | System Information: OS: Ubuntu 11.10 Server: Tomcat 7.0 JVM: openjdk 1.6 I have checked if the server is running by going to [url]http://localhost:8080[/url]. It's working fine. I just need to know the directory in which I should save my servlet in order to run it. I think I am supposed …  |
 | Hello How do I go on about calling from Java stored procedures (which have variables going in and out) and transactions in MySQL? For a stored procedure example, something like 2 variables in that are numbers and the third going out that is the result. Thanks |
| | Hello, I am pretty new to programming and needed some help with one of my programs. I am trying to have the user input how many numbers they want to plug in then they plug in x amount of numbers until they reach whatever they input. After that I am … |
| | I remember someone telling me that there is the heap, the stack and something else. methods are stored in ..something.. and variables somewhere - and even if they're not currently storing anything in the memory location - it's still "reserved"? 1. Does that mean it doesn't matter if I do …  |
| | [CODE] import javax.swing.*; import java.util.*; import java.text.*; class myjavalo{ public static void main (String []args) { String orderStr1, orderStr2, orderStr3; int order1, order2, order3, choice; int i = 0; int menuCat,Entree, SideDish, Drink; System.out.println("\tItem" + "\t\t\tSales Count" + "\t\t\tTotal"); do{ Entree = Integer.parseInt (JOptionPane.showInputDialog (null, "Your Options Are:1 - Tofu … |
| | Hi, Iv downloaded and installed RXTX library: -put files into java folder. -used eclipse / project / properties / java build path ... -also did the: eclipse / help / install new software... But when i add: [CODE]import gnu.io.*;[/CODE] ... and run any example code, the classes are red lines. … |
| | Please can anyone help me install the rxtx library for serial communication. Ive save the relevant files rxtxSeriel.dll and RXTXcomm in to the appropriate bin and lib/ext files, but what are the next steps? |
| | Hello again. So lately i've been learning java, and now i want to make a program but in this program i need to do something like in pascal record(i want to make an array, and in every element of this array i have a string and an int). I heared … |
| | Hi, I am trying to create a pie report using jasper iReport which need link to drill down report for each slice inside the pie chart.If the slice refers to High priority then another report should be opened which will provide detailed information about tickets with High priority. I have … |
 | Hi all, I learning Java as a second language. And I found some syntax in my book of android development to be very hard to explain. Would you help me with this example : [CODE] Button btn(Button)findViewById(R.id.btn_dialog); [COLOR="Red"]btn.setOnClickListener(new View.OnClickListener(){[/COLOR] public void OnClick(View v) { showDialog(0); } }); [/CODE] Its quite … |
| | Hi all, I am a beginner in Java, making GUI in blueJ. I want to use CheckBoxList for multiple selection from a list for users.. I just want to learn how to make one of that. I saw some codes here .They use some sort of CheckListRenderer. I am also … |
| | Anyone knows how to only allow characters in a JtextField not strings or digits? any example source code will be appreciated. |
 | hello, i figured this forum was more appropriate for this thread than the javascript forum, here is why : my javascript is functionnal, and does not set/change css rules of the objects i manipulate. But here is my problem, i have 2 dynamic listbox (selects with size 10ish) with 4 … |
| | Hello every body I'm creating a program that generates a random maze depending on the starting point you enter and then solves it. My problem is that even thought there is a solution to the maze, it returns that there is no solution to the maze. I know that I … |
| | My question is how do I read from the user Datainput.txt file to get the value of myVal? I can handle all the other stuff required for this, but with out the correct value to start well nothing will be right. public class MyClient { private final int myServerPort = … |
| | does anyone know how to fill the JTable with the binary values such as if we have 2 variables a and b the table should be filled in as follows: a b 1 1 1 0 0 1 0 0 any suggestions would be useful.. thanks |
| | Every time when i try to catch exception on the rage of my port Also the Message input box ( can't enter the negative number ) The program seems like doesn't response for my action but when i disable all the code below it will work fine Here is code[CODE]private … |
| | I want to create a Entity class with database in Netbeans. When i select a Data source jdbc/Ionbank (custom Jdbc connection Using JDBC-ODBC bridge with Ms SQL 2005 as database). I see all the table from that database. All tables show no primary key, but they have primary keys in … |
| | hi dear daniweb friends... please help me how to run jsp and what are the procedures need to do for running jsp |
| | Good morning everyone, I have a small problem here. I tried to code a piece of program which allows users to construct logic formula. (E.g A V NOT(B)) When the button NOT (unary connective) is pressed 2 times then this happens: [COLOR="Green"]NOT(NOT())[/COLOR], using a static recursive method called Rec returning … |
| | Hi I'm new to java and I have written a simple Program and everything and set up a Path variable And then I tried to compile it by changing the cd and using javac Then it asks whether javac.exe can make changes to the computer. I tapped yes and then … |
| | I am working on this for hours..Your help is highly appreciated. The client will send 32 integers to the server. These 32 integers will be read from a file called DataInput.txt that is the same directory as the source of the client. I am trying to implement this delivery using … |
| | Hi, I'm trying to make an online compiler for java using ASP.NET C# Process p=new Process(); p.StartInfo.FileName = "C:\\Program files\\Java\\bin\\javac.exe"; p.StartInfo.UseShellExecute = false; p.StartInfo.Arguments = "C:\\Hello.java"; p.StartInfo.RedirectStandardInput = true; p.StartInfo.CreateNoWindow = true; p.StartInfo.RedirectStandardOutput = true; p.StartInfo.CreateNoWindow = true; p.Start(); p.StandardOutput.ReadToEnd(); p.WaitForExit(); I run javac.exe to compile Hello.java, but the process … |
 | Hiya, I wasn't really sure if this goes under Java or Game Development forums, so I decided to post it here. I'm making a simple "Scrabble" game, which checks letters placed on the table and tries to find if they form proper nouns. I have a list of words, and … |
| | Hey everyone, So I am making a sample website for now and will be uploading it when I can but I want a "lavalamp" style menu..however I can't seem to get the hover "slide/float" to work right..it shows the menu bar but wont show the hover effect..can anyone help me … |
| | This is a mess. What I want to do is make 1 program with the 3 loops in it do something different and produce an output of what each loop does. Do loop: print out every other character For loop: print out the string reversed While loop: print out in … |
| | Hello, I am creating a basic Java program that will store music. musicID Track Name Track Artist I have chosen to do this through a text file, to store and view my data. My text file output currently looks like this: [CODE] 1 TrackName1 Artist1 2 TrackName2 Artist2 3 TrackName3 … |
| | Hey so I dont want someone to just show me the code, but I've been struggling to get this to work for hours. I need to write a program that finds all the words with consecutive vowels in them... this is what I have so far... -we are given a … |
| | Does anyone have an example or a starting point for this? I have written a program that checks for palindromes but I am lost with this. Any help would be great, thank you! [COLOR=#000000][/COLOR] [COLOR=#000000]Create a class that models a palindrome. The program should have getter and setter methods for …  |
| | Plz help me in writing a prog that coverts a integer values to respective hexa value and store it to a file eg: in file i need like this 15 0xf(0x mandatory), 255 0xff 254 0xfe  |
| | So I have an assignment due tomorrow and I've been trying to get this program to work, but it's quite difficult for me to do. I need help in taking the user's input and placing it on the grid and checking for all the matches to see if one of … |
| | Hello, I have a project to complete where I need to create a system that stores Clients, Stock and Invoice data through a GUI. I need to be able to store multiple unique records of 'Client' in an array that allows me to edit, delete & navigate through them one …  |
| | Hey How do I make Apache Tomcat allow to interpret PHP as well? Allowing something like: [code] protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("<html><head><meta http-equiv='pragma' content='no-cache' /><title>Hello</title></head><body>"); out.println("<?php echo 'Hello'; ?>"); out.println("</body></html>"); out.flush(); out.close(); } [/code] Thanks! |
| | I Want to develop an application from which user can login into the particular website which sends SMSs, so ultimately we can send SMSs using application without opening website.. i dont know how do i code for that, can anybode help me ?? thanks in advance |
| | Here is my assignment: In Chapter 5, you created a lottery game application. Create a similar game using check boxes. For this game, generate six random numbers, each between 0 and 30 inclusive. Allow the user to choose six check boxes to play the game. [B][U](Do not allow the user … |
| | I have a class called "Vindu" and a class called "Innlegg". I am adding a object from "Innlegg" into an ArrayList called al. But when i try to get the text out from al i only get text like this: "Innlegg@5de9ac4" Is this the memory address or something? How can … |
| | Im making a program that has to call on a method when space is pressed,note it is the first time I'm doing a keylistener To do this i did [CODE]public void keyPressed (KeyEvent e) { int key =e.getKeyCode (); int space = 32; if (key==space) { } } [/CODE] and … |
| | Hi! I'm having some problems with my build files while running junit tests via ant. The build worked fine until a couple of days ago when I got a "process fork failed" error message. Further down in the stack trace i got: Caused by: java.io.IOException: Cannot run program "C:\Program Files\Java\jdk1.6.0_25\jre\bin\java.exe" … |
| | I am making an app similar to the CMD in windows, or Terminal in Linux. My problem is, after calling the method the user has selected, I want them to be able to select another. Instead, it closes. Main class (jDOS.class) [CODE]package jdos; /** *jDOS Cross-Platform Java Console *Luke Pattinson … |
| | HOw can i read from a socket and display message from socket in Textarea of Chatpanel even if there is no any focus in Chatpanel.I mean when i create two chatpanel instance then after clicking the send button in 1st chatpanel the message from socket should be displayed in Textarea … |
| | I'm writing a program that compare two objects'distance. I already implements the comparable class to my distance. I also override the compareTo() method. So far it does not give me a compiler error, but I have a logic error. I have been try to search where my error occur, but … |
| | I spent about 4 hours trying to make PMD being able to validate my Java code but XPath proved to be very painful to work with when developing fairly original custom rules. My rule requires me to apply them only to methods without 'get' as part of their name. In … |
| | I hope someone can help me.. I'm taking a course in programming with java and I have an assignment which is just killing me. I've been visiting the Blackboard page for the class and looking at other questions asked for help from other students in the class having similar issues, … |
| | hello, can any one answer me is java the router's programming language, or at least the mostly used in it? thank you in advance for any kind of help best regards  |
| | HI ALL, well i am writing a program for quick sort but with some changes. The following code sorts the integers but i need it to show the sorting process in each steps.i.e. for example: Initial List: 5 -> 9 -> 2 -> 9 -> 7 -> null Level 0: … |
| | Hey guys, I'm here to ask you a question. I have a constructor to get the highest ID (first int) from my Employee data file (int string string string int double), but I have no idea on how to actually display it within my JTextField, with a +1, so I … |
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