32,204 Topics
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 | What is mean by precasting in java can any one give me simple example please...  |
| | I am totally new to java, but i understand java is the appropriate for my project. i am not sure where to start? and how to use the java packages. I know programming but JAVA is my first time approach. Can any one guide me on the visualization java tools? … |
| | can anyone give me an explanation about static class in java Thank u |
| | Hi there First off I don't want you guys to tell me the answer that way I learn nothing., but if you could give me a pointer to what I am doing wrong it would help alot cheers :D What I am trying to do is get a dice to … |
| | hi all! i'm having difficulties with arrays in java. i've got a few questions that i'm kind of stuck on and their really bugging me! i'm new to java so if anyone can help with the following questions, i'd REALY appreciate it!!!! 1) Write a loop that creates an integer … |
| | I am having trouble calculating the discount rate in java, I have the formula and equation but cannot figure out, what the problem. and my program would compile and work but would display the wrong amt of discount. here the a part of the program.. [code] public void setDiscountRate(double discountRateBeforeTaxes) …  |
| | Hy, I have a JFrame main window and a Dialog window, how can i use the method [I]setPositionRelativeTo()[/I] so that my Dialog window positions centered on the main window ? Thanks |
| | Hi. I'm new with Java's GUI Components and I'm having a hard time with my program design right now. My program deals with manipulating database elements (i.e. fields and records) and I'm stuck with asking the user to add a new record into the database. My program originally works in … |
| | Hi, I need help with drawing an ellipse that is bounded by the window it is drawn in. I have to use the Ellipse2D API. Maybe I'm overlooking something but I can't seem to get the circle to fit the window. This is what i have so far: [CODE]import java.awt.Color; … |
| | ******I need help with my project. Here's the specs********** CS123 MP2 Database Table 1. On Load of the program it will read all files and put its data to the memory. a. Data file - this must be in CVS (Comma Separated Values). The first line is a header that … |
 | I want to upload an Image into a Jpanel .. Actually I want to do the following: 1.Thw User Clicks a jButton 2. A window will be opened by which he/she can choice a image 3. The selected image will be positioned into the Jframe provide me some tutorials or … |
| | hi ive to implement a priority queue with 3 queues in java. its function are insert,delete,reset,search and display but i dont understand i know i have to use vectors to do it since it is easier.the 3 queues should be created in main? or in the constructor of the queue … |
| | Hello all, how to remove a selected row in Java swing(JTable). If any one knows this please help me... |
| | I need to a have a CHAT WINDOW in my business website. Please how can I achieve this?  |
| | hi all, how to detect program is running in my computer. etc: i have open my program application name is myProgApp, in computer jhon, so if i open again the program that in computer jhon will show message 'file already open' . thanks, for your help. |
| | How are you guys, I need your help in java could someone know how to change from character to string what I mean is that let's say I have a variable x with char type and it has a value a. so how I can change that value (a) from … |
| | hi, 've been working on a game that worked over the internet using Sockets, but the program doesn't seem to work with Servers behind routers, is there any way around this? I tried using the router's IP with port forwarding but it didn't quite work. Any tips are appreciated. |
| | explain me about programming in exception handling and threading and synchronization |
| | I’m working on a project that includes comparing XML files and I need a source code on Java to compare XML fragments. I’m using ExamXML from [url]http://www.a7soft.com[/url] to compare XML files but I need the Java source code. |
| | I was wondering is there any algorithm, method, concept, idea for "Reverse Calculation"? Basically I provide an output/Answer , and 1 or more inputs, then it will result the math formula/pattern. For example 1: I provide, Dynamic Output: 30; I provide, Dynamic Input Value A: 2 I provide, Dynamic Input … |
| | hi i m going to start a new project centre for that i need java latest project titles for develop any body have means kindly help me. |
| | hi ,i want to print e.printStackTrace in File using log 4j but its giving error ........ these r my files web1.xml [COLOR=green]<[/COLOR][COLOR=green]context-param[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]<[/COLOR][COLOR=green]param-name[/COLOR][COLOR=green]>[/COLOR]driverName[COLOR=green]</[/COLOR][COLOR=green]param-name[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]<[/COLOR][COLOR=green]param-value[/COLOR][COLOR=green]>[/COLOR]com.microsoft.jdbc.sqlserver.SQLServerDriver[COLOR=green]</[/COLOR][COLOR=green]param-value[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]</[/COLOR][COLOR=green]context-param[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]<[/COLOR][COLOR=green]context-param[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]<[/COLOR][COLOR=green]param-name[/COLOR][COLOR=green]>[/COLOR]log4j1[COLOR=green]</[/COLOR][COLOR=green]param-name[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]<[/COLOR][COLOR=green]param-value[/COLOR][COLOR=green]>[/COLOR]WEB-INF/classes/log4j.properties[COLOR=green]</[/COLOR][COLOR=green]param-value[/COLOR][COLOR=green]>[/COLOR] [COLOR=green]</[/COLOR][COLOR=green]context-param[/COLOR][COLOR=green]>[/COLOR] MyListener.java [B][COLOR=green]public[/COLOR][/B][B][COLOR=green]class[/COLOR][/B][COLOR=green] MyListener [/COLOR][B][COLOR=green]implements[/COLOR][/B][COLOR=green] ServletContextListener{[/COLOR] Connection [COLOR=green]con[/COLOR]; [B][COLOR=green]public[/COLOR][/B] [B][COLOR=green]void[/COLOR][/B] contextInitialized(ServletContextEvent sce) { [B][COLOR=green]try[/COLOR][/B]{ ServletContext sctx=sce.getServletContext(); String log1=sctx.getInitParameter([COLOR=green]"log4j1"[/COLOR]); sctx.setAttribute([COLOR=green]"log1"[/COLOR],log1); } [B][COLOR=green]catch[/COLOR][/B][COLOR=green](SQLException e)[/COLOR] … |
| | [code] System.out.println("Enter new name: "); String stdName = input.readLine(); st.executeUpdate("UPDATE Customers SET stud_name='"+stdName+"' WHERE stud_ID='45698'"); [/code] Ok, this is my problem, this command should update\replace the existing column stud_name with a new name. But it wasn't able to replace it. There were no sql errors. Did I miss anything? Or … |
| | My inventory program was working until I got to the part where I have to incorporate GUI functionality. I have my code and incorporated some GUI code at type, but unable to get them to work together. My code compiles, runs, but acts as if I never added the GUI …  |
 | currently im studying Java 6, and im using Notepad++ for programming, im just wondering if in this way, i could learn programming with java better than using a full blown IDE? :confused: i have a JCreator but i dont want to use it, cuz i decided to use Notepad++ instead, …  |
| | Hello, I have some questions about how to work with urls in java. Any help would much appreciated. When I execute the following code from my app it executes just fine. But when I move my app to a different directory and change the url accordingly, it fails. original code: … |
| | [code] public class Customer { private String name; private String address; private double totalPurchase; private double invoiceAmount; public Customer(String name, String address) { this.name = name; this.address = address; totalPurchase = 0.0; invoiceAmount = 0.0; } public String getName() { return name; } public String getAddress() { return address; } … |
| | hay please any body can give me the code how to implement [B]forums [/B]using java |
| | I have a 2d 9x9 int array as follows 000000000 000000000 000000000 000000000 000000000 000000000 000000000 000000000 000000000 but im trying to extract every box of 3x3 into an array using only a nested for loop, i.e. ---------------- |000|000|000| |000|000|000| |000|000|000| ---------------- |000|000|000| |000|000|000| |000|000|000| ---------------- |000|000|000| |000|000|000| |000|000|000| ---------------- … |
| | Hi everyone, I'm running WinXP SP2 on my laptop, and I have the latest versions of Mozilla and IE. Whenever I click on certain links I get java script errors, and the window I'm trying to open never opens. I know that the problem is local to my laptop, and … |
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