35,617 Topics
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| | Hi I have created an array of random numbers but I need to stop duplicate numbers being added to the array so I have added the boolean 'fresh'. however, I somehow need to tell my 'fresh' to only check the number of elements added to the array so far and … |
| | Hi everyone, Please bear with me as i have a rather silly question. Lets say i have an object and i want to convert that object say a document or any other object to an array of bytes. Does anyone know how to do this? Any help is greatly appreciated …  |
| | I would appreciate any help (I am very much a beginner in Java) what is this error message and also do I use init() or main() for applet? Thank you so much //JavaAirlinesApplet.java ERROR MESSAGE: /*JavaAirlinesApplet.java:8: JavaAirlinesApplet is not abstract and does not override abstract method actionPerformed(java.awt.event.ActionEvent) in java.awt.event.ActionListener public … |
| | i have the following code that reads user input characters and displays the string entered in reverse order. import java.io.*; /** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2005</p> * <p>Company: </p> * @author not attributable * @version 1.0 */ public class ReverseString { public String reverse(String … |
| | Refer to my previous thread for the code that I already have. I have reached dire straits and I can't figure out what to do. I have to get this running for an entry level position that I applied for. |
| | Hi everyone, I am trying to to read and write large files about 600M. The thing is when i use the normal FileOutputStream methods an exception gets thrown saying [code] java.lang.OutofMemory [/code] This is how i am trying to read the file [code] FileOutputStream out = new FileOutputStream("C:/my_life_story.zip"); InputStream in … |
| | Hi I am having a bit of trouble with a do while loop. I either can't get it to stop, or it doesn't do exactly as I need it to. I am using a array called nums to insert random numbers into a binary search tree. Once the tree has … |
| | I am trying to write a game that will read check boxs to find the difficulty level that the user wants, then using the parameters behind each level create an array of a certain length using a certain range of numbers. For some reason it seems to ignore my parameters … |
| | Hi, I was hoping if anyone could help me really quickly. A section of my program needs to discern between java primitives. I've had to make regular expressions which look for the different characteristics between each primitive, but I don't know what some of them are. Below are all the … |
| | Hi I have a JTextpane where i will be adding instructions. I know this will not be large enough, but there is no further space on my interface, so I need to add either a scrollbar or scrollpane. I have tried a few attempts at this but cannot get either … |
| | Does anyone know how to change the colour of text in Java? I'm getting a lot of input from my user in a program I'm writing, and it gets kinda difficult to follow with it all being one colour. Any help would be greatly appreciated =D  |
| | hi there can anybody tell i need to use relative path to file using config file. and can i put the input files in a loop so that files with .out extension in the current dir can be processed. regards vps |
| | While running the older version of jdk1.3.0 my bdk1.1 worked fine. Recently i installed the latest version of the j2sdk1.4 and the problem surfaced. Whenever i run the run.bat file, lot of exceptions are thrown at the command prompt. And some of the inbuilt beans won't be shown. As for … |
| | Hi everyone, I am trying to write some bits to the parallel port using the java communications port and all is okay except that i need some clarification on something. The parallel port is connected to circuit board that needs nine inputs(or better known as nine bits) Now this is … |
 | Hi Everyone, I'm making a Java chat application, but it freezes whenever I click "Connect." My code is attached below. Thanks. [CODE] import javax.swing.*; import javax.swing.event.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.net.*; public class CinnaChat extends JFrame { JLabel lblServerIP = new JLabel("Server IP:"); JTextField serverIP = new … |
| | Does neone know the code instruction to store an array of CD objects. Each entry in the array has to be a single object describing a CD. i.e: Artist Name , Album Name, Number of tracks i've written the program out but i cannot seem to get the above right. … |
| | Hi again, I know I've asked a lot of questions, and you guys have been a really big help, so sorry for all the trouble. XD But, I've got another problem. :X I've been making a reflective program, and it's more or less working right now except of couple of … |
| | Hi all, This is my first post on this forum.. i need some help.. first of all, i downloaded 90 days trail version of Sun Studio 7 enterprise from the net... when i try to install Sun Studio, it asks Domain Name .. but mine is personal computer.. i don't … |
| | hi everyone i am doing this course work, where i have two classes. one is the point2d that models a two-dimensional point. The second part, the rectangle class, require the use of the Point2D class developed in the first part of the coursework. i am stuck in following two functions: … |
| | Hi, sorry again for all the trouble, but I'm trying to get a reflective program to work. It takes a method from a user, and then runs it. My program works except it only works for strings. If they arguments needed for a method require ints or floats or whatnot, … |
| | Hello, I'm working on a authentication project which I don't want to run through a compiled .exe (to easy to hex edit or crack). So I was thinking about having the user enter the password in a compiled MFC App. When user clicks, "Authenticate" the entered information will be sent …  |
| | :?: can anyone tell me how to recover the data from hard disk after pressing shift+delete  |
| | Hi, I'm trying to make a very simple java tester program. So, my program asks the user for the name of a method, and then runs it (doing a bunch of tests in the process) Does anyone know the name of the method(s) that will allow me to do this? … |
| | does anyone know of a good java compiler that can make executable files. I want to be able to run my programs that are not applets without having to open my IDE everytime to execute them. I want to be able to asign them an icon and put them on … |
| | hi everyone, i have a final year project for my BS computer science. can anyone suggest me a project on aspect oriented programming?? other suggestions are also welcome....all i need is a brief(or long) description of what to prepare. thanks |
| | Ok, what the heck causes these stupid exceptions. I can't find hardly any documentation on it. I've tried running my mortgage calculator on a different computer and it won't show up because a unsupportedflavorexception. I know it's something about the major or minor version, but what do you do about … |
| | Sorry for troubling everyone with my questions these past few days, but I keep bumping into all these weird little problems. The code below, is a sort of minor reflective program that runs methods after reading classes. [CODE]try { //getclass is a class named "Example" [B]Object instance = getclass.newInstance();[/B] //Is … |
| | ok.. now that I know about the JOptionPane, I have one more question. How can you create a real executable program from the java code that u write. IT can be executed through JCreator or another java creator, but how can you make it so that its an actual java … |
| | yes, there's an area of Java I'm almost a complete novice in (so far, I'm going full steam ahead :cheesy: ). I've the following code to filter out non-numeric input from a JTextField (which is meant to contain a timeout interval in minutes, that's why). [code] private void dumpNonNumericInput(KeyEvent e) … |
| | I know how to run tomcat on MY computer, I just click the start button. My question is, how can I upload tomcat to a webserver and make it run forever(or at least until I click stop). |
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