31,001 Topics
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| | I am using getRow() method of ResultSet class like: int rowCount = result.getRow(); but when i run the application, it gives me the exception that says: *The 'getRow()' method is only allowed on scroll cursors.* Please, anyone, who knows why it happened, explain it with some possible solutions Thanks!  |
| | Hi everyboy, I have a question how to add not boolean expression to the conditional loop, Imagine some situation where I have : while(some expression && another expression) { .... } So lets say I want to calculate how many times "another expression" was evaluated. I wish I would stick … |
| | I need to count the number of votes for candidates... I'm getting an unreachable statement error on "int[] array = new int[6];" Scanner sc= new Scanner(System.in); int a= sc.nextInt(); return a; int[] array = new int[6]; int mitt; mitt= array [a]; int rick; rick= array [a]; int newt; newt= array … |
| | this is my sourse code,i have indicated the error in the bottom of the sourse code . import java.io.*; public class Queue { private int maxSize; private int queArray[]; private int front; private int rear; private int nItems; public Queue (int s) { maxSize = s; queArray = new int[maxSize]; … |
| | I want to update my database but the problem is that the driver is not taking any values from the preparedStatement. I am getting an error : java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] You must enter a value in the 'ClassicRoom.Occupy' field. Press any key to continue... Here is the ActionPerformed … |
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| | so i have to build an application where i have to read values from a csv file(excel)and insert them in mySQL.i can do the reading part however I'm fairly stumped by how do i insert the values to the database. Any help regarding this matter is apprecaited.  |
| | Basically i'm wondering if i can fill the "File Name" field of a JFileChooser automatically. I'm pulling files from another machine using sftp, and specifying the file to be created with the JFileChooser. So that the file i'm transfering will be saved with the name and location i specify. As … |
| | hello dears, please can anyone correct my java error, when i run bellow java source code error cause as can not find symbol. public class StackApp{ public static void main (String arg[]) { StackX theStack = new StackX(10); theStack.push(20); theStack.push(40); theStack.push(60); theStack.push(80); System.out.println("Value at top : " + theStack.peek()); System.out.println("Is … |
| | Hi, I just started learning about java applets recently and was wondering why the shapes won't appear on screen when I press a button. import java.applet.*; import java.awt.*; import java.awt.event.*; public class Buttons extends Applet implements ActionListener { public void init() { button1 = new Button("Button 1"); add(button1); button1.addActionListener(this); button2 … |
 | I have made a HRMS (Human Resource management System) using NetBeans 6.5 and for database MySQL 5 The project is completed and running fine ( great) without any problem when i run it in NetBeans using Run Main Project Button. Then i 'Clean and Build the project' and get a … |
| | Hey guys. I'm making a project for my university. It consists of Jframes and other JStuff. I'm having problem with data. The problem is changing them. I have 2D array of Strings - numbers and words (but the content doesn't matter). I want to make a JFrame, where you can … |
| | Dear All, Please Help me in this application.... My problem is that i want to select the required text from the following text. In this text I want When user input following text. I will get only special information from it. Abdoul Amin `23 av Olympiades 94120 FONTENAY SOUS BOIS …  |
| | So my assignment is to design a simple GUI calculator using the stack data structure to perform additions, subtractions, multiplications and divisions. The calculator window should have at least two panels - one for display and the other for buttons (0 - 9, . , +, -, X, /, =, … |
| | I have an assignment to write a program in Java to implement the Natural Correspondence Algorithm for converting a linear list into a binary tree. The program should process its inputs in two steps: (a) It first builds a tree for a given input list (b) It then traverses the … |
| | I'm doing a lesson that is supposed to demonstrate inheritance using the song Old MacDonald; there's an animal interface, a farm class that implements each animal object.. you get the idea. I've got two problems. First, The animal has a type and a sound, for example, a chick is [code] … |
| | I'm trying to decompile this one method; I'm pretty sure its purpose is to take two integers and convert them to a single long, but I may be wrong and it can be just some weird math. What I have gotten so far: `long result = (((long)possibleHigh) << 32) + … |
 | Hello I have written a MVC2 : DAO program using an Apache derby embedded DB. Currently I have not been able to jar the program : runs in IDE. My question concerns running this program on multiple work stations of a local network. Will this be possible? Currently when I … |
| | Hey guyz im beginner from java programming. Could anyone please help me fix my problem? I have this method ~~~ public void determineClassAverage() { Scanner input = new Scanner(System.in); int total; // sum of grade int gradeCounter; //number of grade to be entered NEXT int grade; // grade value int … |
| | I need to pass buffer object which has generated values to construcor of reading class to print real time generated numbers. Which is the best way to do it? When I pass generated value I get the number but I need to pass values that are beeinig generated and writed … |
| | Hello, I am attempting to enter two numbers via console in my test class and call a method in my main class to add the numbers and display the answer. Java doesn't like the Calculator.Calcuate(); code. It gives me an error of "cannot make a static reference to the non … |
| | Hi, I have a requriement to convert all my properties files from English to Hindi to make my project internationalization. Can any one please tell me, is there any tool to convert my property files from one language to another language. I have found some language transulator sites, but it … |
| | Hi all, I need to utilize a Graph Data structure for an assignment. I've understood the following code (posted below) until I came to the search function. The depthFirstSearch and breadthFirstSearch both require a Visitor<T> which is an interface. I'm not much used to interfaces, so I'm not sure where … |
| | Write a Java interface named Searchable with two abstract methods: one named Way2Search that returns a String and another named MaxTime that returns an Integer. Be sure your code compiles and runs as expected. Name your Java file Searchable.java. Although there is no compilitation errors, or any errors throughout the … |
 | plz... I need to add images for drop down list..So how I do it?? This software deverlop in java platform using Netbeans. So this can't be use any Java Script.Can you? Because this is Desttop application .. plz help.. |
| | **I am using NetBeans** i have a 'Search by employee id' button . I want when user click this button a dialogue box appear which take employee_id as input from user . then that input be used for fethcing data from the database ( desired table in DB has primary … |
| | Hi. I am Using netBeans.. I have 4 JLists (i.e jList1 , jList2, jList3 , jList4) in 4 different tabs in frame. Each List has the value of employee_id from database (i successfully did it already) there are many field in tabs ( i.e rows of databse with employee id … |
| | hey, i have a code snippet for implementing the co occurance matrix of a grey level image.The code is :- public class TextureExtraction { public static int[][] binImage; public static int height; public static int width; public static double[] coocFeatures=new double[48]; public static double[] getCoocFeatures(){ return coocFeatures; } public TextureExtraction(int[][] … |
| | I need help with this code. I get zero values, how can I stop generating numbers when I hit the target number? Thanks import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.util.concurrent.locks.ReentrantLock; /** * @author Marin */ public class TargetFinder extends JFrame { private static final long serialVersionUID = … |
 | Does anyone know some algorithms for converting to bases such as octal, hexadecimal,and binary? |
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