32,199 Topics
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 | Hi guys, I have a simple application which allows users to input a divisor, a divident and then calculates the quotient. I'm using vaadin as framework but I don't think that matters. So I've been thinking about the exceptions that can occurr and these are the ones i have identified: …  |
 | THE CODE BELOW IS FOR SAVING FORM DATA FROM HTML FORM TO A TEXT FILE IN THE LOCAL COMPUTER. BUT, THE TEXT I AM GETTING IN THE TEXT FILE IS ALWAYS IN A SINGLE LINE AND I CAN'T ORGANIZE IT. THE CODE BEING USED IS AS BELOW. <!DOCTYPE html> <html> …  |
 | Hi daniweb community, this sounds really weird question but I'm having a problem finding a page/portal. has been about 2 days and I've been searching literally for more than 30 hours. From the desperation I am asking any of u if they know it. Inside microsoft page, or microsoft azure. … |
 | Hi! Can I ask for help, please? How can I pass variables especially array variables and values from a class to other class? |
| | Java code to get windows service start time ? Like how we get using Process Explorer. Thanks in Advance! PFL for Screen Shot: https://drive.google.com/file/d/0B5KXd3eMbanKckt0YXZCTERWU2c/view?usp=sharing  |
 | hi!guys pay some attention there thanks can any one tell be what is the difference b/t java and java script.. According to my point of view java is programing language that used for the application development..but i have a little knowledge about java script i think it is client side …  |
| | Hello, I am facing a problem I cant seem to find an efficient solution for. My application is supposed to parse a text file while another process is continuously adding to it. I have tried scanner and inputstream but both seem to stop once they hit the end of the … |
| | Hello everyone! I have been working on my school project and I have encountered problem linking jTable with a table in the sql server.Can anyone please help me regarding it.Please help me with the code on how to link the the table. |
 | Create a payroll program for 5 part timers for 1 month let the user program enter the name of 5 employee and the No. of hours per week. Based on the rank,calculate and display Net Salary based on the ff: Rank Rate per hour Instructor I Php 172 Instructor II …  |
| | Hi! I'm a beginner in Java can you share an answer for this assignment since I already been doing this for a week and I don't know how to answer. Create a Student class with those attributes: 1. firstName 2. lastName 3. grades (it contains grades between 0 and 10) … |
 | Hi, I have one function (in a library I can't change the code) which takes a key and returns a Object. This code is written in java. I am calling this function from cpp code. I am accepting the result as jobject. 1. Added key as "key1" & value as … |
| | I really want to learn Java but I have no idea how to study it. I just keep reading the books yet have no idea how to program. :(  |
 | Hey new to JDBC SQL DERBY and Java so I don't know why but my Jtable only shows the columns. Here are my codes for my LeaderboardDAO class. public class LeaderboardDAO extends Dao { private static final Logger LOG = LogManager.getLogger(PlayerDAO.class); public static final String TABLE_NAME = "leaderboard"; private static … |
 | Hi, How to programming in java through make the web video chatting application? Please tell me about this knowledge and in which are require the skills. |
| | Hello. Im doing some practice questions and Im kinda stuck. So basically I have three Jbuttons: "Menu", "Left" and "Right", a JTextField : "tDisplay" and an array : status. code (dummy code for example): String[] status = {"hello","goodbye","goodnight","goodmorning"}; what needs to happen is when Menu is clicked Hello is displayed … |
 | Hi My code is giving me a red line under '.createStatement()' and I really don't know why and how to fix it. @Override protected String doInBackground(String... params) { if(userid.trim().equals("")|| password.trim().equals("")) z = "Please enter User Id and Password"; else { try { connection con = (connection) connectionClass.CONN(); if (con == … |
| | Hi, I have been working on JNI. I have one doubt. When I call any native method from android activity (Java code), then we get jclass object from jobject instance we get in the native method as a parameter. Why do we need it actually? Here is a snippet from … |
| | I would like to delete a binding group from my java code, Netbeans does not allow me to do it.I try to do this by right click >Refactor > Safely delete , but a warning appears and the group is not removed. How do I go about deleting this? |
| | Hi, I have problem I can't add to the JTable new row (public void addRow(ArrayList<Object> newRow)) from the other class with action of the button Main.java import com.sun.javaws.Globals; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; import javax.swing.event.TableModelEvent; import javax.swing.table.AbstractTableModel; import javax.xml.bind.annotation.XmlElementDecl; public class … |
| | Anyone here know a good java library for XADES signing? Tried my luck with Xades4j, but that didn't go anywhere, couldn't find any API for that. Please provide code examples if you can. |
| | Hi guys, I wonder if you can help. As I've started as a programmer, I've been told I have to practice OO a bit more. I've done the theory, but I think I will have to take another look at it. , Above all though, I have to do exercises. … |
| | I'd like to start from the basics if I may please. I've read a few tutorial here and there and I've just created a test application with probably the simplest RPC calls you can possibly have (basically I want to use the RPC call to call a method to print … |
| | I want to learn java for competitive programming . I'm actually aware of all the great books on java like thinking in java , effective java etc. But those books are very detailed . i want to learn enough for competitive programming without going into too much of unnecessary details … |
| | Hi all; how can i find equal string in 2D array in java in this program,, i mean in this code i have 2D array 2 rows and 4 columns,for example in my code the equal string is "orange" ,,so how can search for any equal string in 2D array … |
| | Hello , I'm new with java and I have a work to do, but I don't understand anything :( Can someone please help me ? Create a program composed of two classes called: GradeCalculator (with main ( ) method ) and Student. The Student class structure is presented below: Student … |
| | How to add bookmarks and hyperlinks in pdf using itext? can any body tell example. Thanks advance.. |
| | Someone could help me fix my problem. Im using netbeans and im developing a system as part of our ojt to create a system. I had a little problem of how to move tab or switch tab after i clicked a button. Please help me. thks :) |
| | A farmer with his wolf, duck and bag of corn come to the east side of a river they wish to cross. There is a boat at the river’s edge, but of course only the farmer can row. The boat can only hold two things (including the rower) at any … |
| | Design and implement an application that determines and prints the number of odd, even, and zero digits in an integer value read from the keyboard. (java) using for loop |
 | Hey everyone, I'm looking for some help with coming up with a system to communicate data between client and server sockets. I was thinking of a command system, but that would only work when the client is sending a request to the server, not when the server is returning data … |
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