35,618 Topics
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| | Hello everyone, I am trying to build this simple chat program that consist of two classes. One is Server class and the other one is Clint class, but I have this problem with it. It does send and receive strings, but after the the second received string it does stop. … |
| | import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.io.*; import java.text.*; import java.util.regex.*; import java.io.FileNotFoundException; import java.io.IOException; import java.io.RandomAccessFile; class Clustering1 { public static void main(String[] args) throws IOException, FileNotFoundException { int diff_matrix[][] = new int[500][500]; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter the data file name\n"); String fname=br.readLine(); …  |
| | import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.io.*; import java.text.*; import java.util.regex.*; import java.io.FileNotFoundException; import java.io.IOException; import java.io.RandomAccessFile; class Clustering1 { public static void main(String[] args) throws IOException, FileNotFoundException { int diff_matrix[][] = new int[500][500]; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter the data file name\n"); String fname=br.readLine(); … |
| | Dear friends i just need a web link or an ebook that contains all java built in functions and classes with it's return types and parameters. thanks in advance |
 | Hi im trying to connect to my database but i dont know why i cant load my jdbc driver: -I've saved the jar file together with the other java files in the same folder called "a" -I used –classpath flag: Windows: "java -classpath .\mysql-connector-java-3.1.8-bin.jar;. LabDB4" but I dont know if …  |
| | I want to get the size of a folder and also the size of files in that folder but the output is zero even though I used the java **long method** for file size and a for loop to access the files in the folder.The programme only outputs the size … |
| | Write a program that has only one button in the frame. Clicking on the button cycles through the colors: red --> green --> blue --> gray --> red --> and so on, one color change per click. In addition to the setBackground( Color.color ) method we have been using, you … |
| | I'm running Eclipse for Java. I created a DOM version of an XML file. Now I want to change an attribute of an element in the file. I called a method that called a method in the class that controls the DOM, and I got a dialog box saying "JDI … |
| | Hi, In student project have use 2 combo boxes (state and district) how to write the in jsp code please anybody tell me my mail <EMAIL SNIPPED> |
| | Ok, so I created a Desktop Application in Netbeans for my class's final project, the thing is I have to present it to my class at my school, but the computers there only have jcreator, how would I get it so that i can compile a netbeans desktop application project … |
| | this is my code - i have three classes and i will post all since i have no idea what i'm doing apparently [CODE]public class OneTwoTest { public static void main(String[] args) { System.out.println("Welcome to One-Two Match!"); Game g = new Game(); g.play(); System.out.println("Thank you for playing."); } // end … |
| | I dont really know specifically what im searching for, which is why i haven't just found this via searching the web. Have you guys come accross or know of any sort of quiz questions like where it gives you a for loop which isn't in the normal format and then … |
| | hi i have write LSD radix sort but it does not work can anybody help me? here is code public class LSD{ public static int R=1<<8; public static int bytesword=4; public static void radixLSD(int a[],int l,int r){ int aux[]=new int[a.length]; for (int d=bytesword-1;d>=0;d--){ int i, j; int count[]=new int[R]; for …  |
| | Write the ideal weight calculator so that height in inches is entered by using a slider. Use the approximate formula: W = H2 / 30 , for female W = H2 / 28 , for male where W is the ideal weight in pounds, H is the height in inches … |
| | Hi every one!! I have a java program and i don't know how to delete a record from an array of objects using JOptionPane |
| | Hi , I dont have any basic knowledge in servlet program in java.Now i am using Redhat os. Please any one tell some steps how to execute the servlet program. Thank you, Prem. |
| | Hello all, I need a bit of help with this program, I need to make my code create a complete binary tree using an array. As well as create a driver class that displays the tree graphically Here is what I have so far with my code Tree Code: [CODE]import … |
| | I am getting an error message that is quite new to me. I normally can call methods without incident but this time, I saw a new error message. This code is sample coding I am using to see how to fix three of my issues. First Class [CODE] public class … |
| | Pressing the enter key at the jsp page receive extra invalid data at the ProdController.java. The alertgroupStr receive "unack" as expected. However, I do not understand why alertgroupStr receive the extra invalid "null" later. Debug log: 11:14:52,187 DEBUG com.systems.monitoring.war.ProdController:54 - alertgroupStr unack ... 11:14:52,187 DEBUG com.systems.monitoring.war.ProdController:54 - alertgroupStr null ProdController.java: … |
| | Hello i have an assessment to make a car park in GUI and i have tried some stuff but didnt work I need to make in two classes one with the main method and a JFrame container and the other with the buttons for park controls and others Any help …  |
| | I am trying to download an excel file that is avalible on this site: [url]https://www.arcavision.com/Arcavision/index.jsp[/url] Once you are logged a frame opens where you fill out a form and then click submit. On pressing submit the result of the query shows and gives you the option to download the data. …  |
 | Okay, so I'm having problems with my code. I've browsed Daniweb and couldn't find any solutions on here that work. I'm extracting 2 sets of texts from a .xml file. The first part is a directory name(eg. "C:\work\") and the second part is the name of a file in that … |
| | Im working on Java app that stores sms and parses this sms. i have them stored in a text file in this form; "21M32113Good19F41324Agree..." i want to parse messages in this form "Age Gender Ans1Ans2Ans3Ans4 Comment" e.g "21 M 32512 Good".i also need to insert new line breaks to separate … |
| | I am trying to include this piece of code in my Java Class. But the compiler tells me that it can't find Class Calendar. I can't create a class within a class though, can I? Any advice on how I can link this in to the rest of my code? … |
| | I need to calculate percentage relative to a particular bar within the series in a barchart Could any one help me out |
| | I want to develop a JAVA application which can send and receive SMS. I have a mobile phone connected to PC through USB cable. This JAVA program in PC should be able to send and receive SMS. AT commands are used to instruct mobile phone to send/receive SMS. But how … |
| | I have a combobox on a panel that changes tables on the panel. How would I get it to repaint if this panel was on a JTabbedPane in a InnerFrame in a JDesktopPane? It repaints but after I switch for one tabs and then back to the said tab. thanks. |
| | [code]BarRenderer barrenderer = (BarRenderer) plot.getRenderer(); DecimalFormat decimalformat1 = new DecimalFormat("### %"); barrenderer.setItemLabelGenerator (new StandardCategoryItemLabelGenerator("{2}",decimalformat1)); barrenderer.setItemLabelFont (new Font ("Bold", Font.PLAIN, 12)); barrenderer.setItemLabelsVisible (true);[/code] In eclipse I got the StandardCategoryItemLabelGenerator cannot be resolved to a type in the below line StandardCategoryItemLabelGenerator I import import org.jfree.chart.labels.StandardCategoryItemLabelGenerator; there also i can get redline below … |
| | Hi, I have to create a JSP page wherein files are to be uploaded to a specific location. This location is unique for each user and is thus stored in the database. Thus it consists of 2 steps 1. Reading the location from the database. 2. Uploading the file to … |
| | Hi there, is it valid to have a java class name and file as [CODE]public class DVD extends Items{[/CODE] and [CODE]public class CD extends Items{[/CODE] where its all in capitals? -thanks, sorry for the short question. |
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