32,204 Topics
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| | okay I have it almost complete with one issue: When the report runs it is suppose to add up the property values for each agent and only display the total value of the properties. like:COMMERICAL FARM LAND RESIDENTIAL 101 600000.00 105 30000.00 106 200000.00 107 1040000.00 110 250000.00 but for … |
 | Hey all.. Happy new year .. I am insearch of converting the android application(apk) to java desktop application. I dont want to run it in some sort of emulators. I want to convert the apk file into java(J2se) desktop applciation and run it on my desktop. Can you suggest some … |
| | Hello, After a relatively small C++ background, I decided to learn some Java. I want to be able to pass two variables from my main class, evaluate them in another class, and return that answer to the main class. I have all the code done for it pretty much, but … |
| | [import java.util.Scanner; import java.util.Random; public class HangmanMy { public static void main (String[] args){ System.out.println("Welcome to the game Hangman :)/>"); Scanner input = new Scanner(System.in); boolean done = false; String guess; String guesses = ""; char letter; int wrongGuess = 0; StringBuffer dashes; System.out.println("Choose a category -> places / games … |
| | Do you have a sample code suggestion to predict illness to a blood type? Blood type is an input from the user and when the user inputs the blood type it would give you all possible illness for that blood type. Is that possible? Am using netbeans and not sure … |
 | Hello, I'm Mirza and I'm in the first semester of an IT university. I like to experiment with Java, and occasionally I run into problems. Now, I've been visiting daniweb for quite a while now, and I've always found solutions to my problem, but this particular problem I just can't …  |
| | link to old post shows code: http://www.daniweb.com/software-development/java/threads/440001/output-incomplete-text-file program to: A. Develop an application that reads your listings.txt file, analyzes the property listed per agent, and outputs a report to an agentreport.txt file. Your application should do the following: 1. Prompt the user for the name of the input file (listings.txt). … |
| | I am finding it difficult to update the `JTable` when I enter a person's name in search button. The program compiles correctly without any errors, but in `SearchActionPerformed` event when the search button is pressed an empty table comes up. Where without search, the table is full of values from …  |
| | I've got this exception after running my project Really don't know what to do! SQLException: No suitable driver found for jdbc:derby://localhost:1527 I've add derbyclient.jar to Library.but I didn't get any different result.I also don't want to create a new database. I wasn't able to attach it here but here are … |
| | Hi, I need to generate a dynamic bar graph in excel.The code is in java and related technologies.On my site when a click a button 'generate graph for selected values' i should to get a bar graph in excel.Since the values selected can change and also the data associated with … |
| | hello i'm trying to code 'Save Button' which saves all the information in a file this is what I did: private void SaveButtonActionPerformed(java.awt.event.ActionEvent evt) { java.io.File file=new java.io.File("File.txt"); try { java.io.PrintWriter output = new java.io.PrintWriter(file); output.print(this.DateObject.getText()); output.print(this.NoteObject.getText()); output.close(); } catch (FileNotFoundException ex) { System.out.println(""); } } the problem is if … |
 | HI all, I am having a little problem with the following program. Here are the files: Player.java: import java.text.DecimalFormat; public class Player { private String name; private double average; public Player(String name, double average) { this.name=name; this.average=average; } public String getName() { return name; } public double getAverage() { return … |
| | Hi, I have something wrong at table_academicMouseClicked() method which results me with a java.lang.NullPointerException error. basically trying to compare the surname in Jtable and look it up on the database to select the corresponing record so that I can set the label to the value from database. So when a …  |
 | Hello, I have some java code I want to port to C++, and first class in the Heirarchy has me stumped. I'm trying to port a simple parsing framework as an exercise to figure out how it works internally, and almost everything in the framework requires, uses, or is `PubliclyClonable` … |
| | Hi, i'm making a server client piant program that send what is painted on the server to the client(and vice versa). this program is supposed to use instruction based transmission of the image. i have a server client program that sends what is drawn on the server to the client … |
| | Hello.. I created a project in netbeans. I have a JFrame form. It has a JTable in it. I want to insert the database data in this JTable. Can you please help me. I would appreciate if you show me a sample code. Please dont tell me to add rs2xml … |
 | ***How To UpDate JTable on Delete Command and if given id don't match with database then a message show "id is not available " My Codes as follows:-*** private void Sf_Reg_delete_ButtonActionPerformed(java.awt.event.ActionEvent evt) { String str2 = JOptionPane.showInputDialog(null, "Please Note that this Reg No is not generated again : ","Enter Reg … |
| | This is my program so far: package allin1; import javax.swing.*; import java.awt.event.*; import java.awt.*; public class Allin1 { JFrame frame = new JFrame(); JPanel panel = new JPanel(); JButton b1 = new JButton("Exit"); public static void main(String[] args) { panel.add(b1); //THIS IS THE PROBLEM?? } } The error I am … |
| | I am unable to execute the editProfile() method in MainMenu class. The purpose of the method is to be able to extract the bean values and display them on the empty textfield. I am not sure if i did it correctly. any recommendations for any changes to editProfile() method. public … |
| | i'm trying to show date in a text field this is what I did java.util.Date date=new java.util.Date(); this.DateObject.setText(date); and its wrong... please help & thank you. |
| | I was trying to set a UniqueIdentifier based on Long. The objective was to give a certain custom Object a unique identifier in order to allow me to store them in a hashmap. I saw someone trying to use the most significant bits. So I realized that the addition of …  |
| | What's wrong with the following code? public void fillByteArray(InputStream s, byte[] b, int offset, Integer numReads, int readAmount){ while (numReads > 0){ s.read(b, offset, readAmount); offset += readAmount; numReads--; } } |
| | My aim is to fill a 3x3 grid of Jtextfield in java swing with values and position of entry in that grid sourced from a text file.I made a file named aa.txt. Its contents are:- a1-3 b3-9 c2-4 a1,b3,c2,... are names of textfields in grid and numbers separated by hyphen … |
| | I am attempting to make a TicTacToe in java using Swing. Instead of using buttons for mark(x and o) placing on 3x3 grid, i used textfield(variable name- pos) to specify position of mark entering and another textfield(var name- val) to take value to insert it into the position which i … |
| | So I have been working on this project for quite some time and I can't figure out why I keep getting an "Illegal Start of Expression" error. I tried moving the variables above the main method and that only returned the same error but instead of the error occuring at … |
| | I have this paint program and i'm having a very silly problem. I'm trying to set the paint area to west position using border layout but when i do that it doesn't show up when i run the program. if i set it in the center it shows up. everything … |
 | class Emp { int name, emp_no, addrs, ph_no, deprtmnt, post, project; Emp(int a, int b, int c, int d, int e, int f, int g) { name=a; emp_no=b; addrs=c; ph_no=d; deprtmnt=e; post=f; project=g; } Emp(int a, int b, int c, int d) { name=a; emp_no=b; addrs=c; ph_no=d; } Emp(int a, … |
| | Hello Everybody, i'm having a problem with my code. I'm making a word reverser program though I'm not that much knowledgeable about java. The output that I'm aiming for is something like this "olleH dlroW" by inputting "Hello World" string. I'm getting the output that I'm looking for when I'm … |
| | Hi. I have a problem with launching my application as applet. The game runs fine as an application. my applet code: package net.viped.breakout; import java.applet.Applet; import java.awt.GridLayout; public class GameApplet extends Applet { Core core = new Core(); public void init() { setLayout(new GridLayout()); add(this.core); } public void start() { … |
| | hello, i have made the code below. however, when comparing the two strings they are not equal when in theory i thought they would be. String word="abc"; String d=""; d += "a"; d += "b"; d+= "c"; if(word==d) { System.out.println("IS EQUAL"); } When i just print out string d it … |
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