36,051 Topics
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| | how can you put spacing between objects? i mean, how can you place an object,e.g. a button, to the next line inside a pane? i tried setting the size (PaneSample.setSize(8,9)) of the pane and use flowlayout, but it wont work. can i get any suggestions from anyone? thanks! :)  |
| | Hi! I am not that good in java and as a homework we had to write to classes: a partial abstract class Koerper and it's subclass Kugel but when I try to compile them the compiler always tells me this: [quote]Kugel.java:9: Kugel is not abstract and does not override abstract … |
| | This is my assignment, before some of you complain, I finished it. It works all I want is something that is in the back of my head bugging me. If a user was to input a letter instead of a number how do I keep the program from crashing and …  |
| | I am trying to work out this issue in a molecular caluclator that I am trying to develop. I would like to go from mass to formula. So I am given a mass, ie 120.3433. And an equation could have up to 8 C, 3 H, 11 N, 6 S … |
| | pls help with a java program to simulate a bursary unit with emphasis on fees payment and verification, salary payment. you guys are gonna make my day.tnx  |
| | Hello all! I am having a few issues with my code and after hours of endlessly searching Java help sites and Java forums, I decided to bring my issue to the table to receive some help specific to me, I am receiving the error 'Illegal start of expression' with the …  |
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| | been working on this for 2 days and can't figure out what I am doing wrong. We are suppose to input a day and the days gifts are to be in the output. When I put in my day it starts with the correct day but then loops through all … |
| | Hello, I am having a problem writing to a file on a client/server application. I can send the data from a JTextArea to the server, it appears to read the text, but I cannot seem to get the server to write the data to the .txt file. Can anyone help? … |
| | command[0] = "cmd"; command[1] = "/C"; command[2] = "dir"; command[3] = "C:\\SomeDir"; Runtime rt = Runtime.getRuntime(); Process p = rt.exec(command , null , workDir); It is working fine. Here the executable command is "dir". Here p.waitFor() gives value 0. [COLOR="Red"]But if I give any other command suppose "rename *.doc *.rtf" … |
| | Hi all, Finally thought I'd register since these forums come up quite often in search results in google :) I'd a web dev at ufi.com (mainly we do learndirect.co.uk) and have to do everything from HTML and CSS through to configuring Tomcat via Java and JSP. Hoping to learn a … |
| | I have been working on a program that Should Scan a small Subnet i.e for eg 10.1.1.1 to 10.1.1.255 with the subnet mask 255.255.255.0 I am attaching screenshots of the main screen of my project as "Screenshot 1" source code :jMenu.java I am posting the code here: [code=java] package projectpack; … |
| | Hi all. I am trying to do a kind of streaming app in j2me, for a w810i. The device I am streaming data packages to, have a buffer of 10kbytes for me to use. I am streaming datapackages where 24Kbytes is used in about ½ second. Does anyone know if … |
| | When you put an item on a queue, how do you show the items inside the queue? do you use peek method? the situation is a linked queue... |
| | import java.io.*; import java.util.*; import javax.swing.*; import java.util.StringTokenizer; public class Sample { public static int count = 0; public static String s[]=new String[2]; public static String s2; public static String s3; public static void main (String args[]) throws IOException{ isRead(); } public static void isRead()throws IOException{ int count2 = 0; … |
| | Hi all, I've just joined but have been coding a while longer :) I'm having trouble migrating a webapp that works fine under Tomcat 5.0.28 to 5.5. I've done several others without any problem. This one, however uses SingleSignOn. I can't see anything wrong with my setup (config below) from … |
| | i used setundecorated(true); to remove the buttons and border of the window,,the problem is the frame only stays where it is, because the title bar is removed i cant drag it around the screen anymore.. what code should i add to be able to drag it anywhere in the scree …  |
| | Hello everybody, I know what I want to do with the code, but I am not sure where exaclty to put the "if" statements. I am working on a weekly payroll program and I need to put in an if statement so it throws an error if the weekly hours … |
 | Hello everyone, Im back, with a new problem. LOL! I need to change Java datatypes to SQL types. I have sql queries as String object. like this one : [CODE=sql]create table MyTable ( id bigint, name String , city String , state String ) OR create table MyTable ( id … |
| | Hi Experts! I am trying to build dynamic hyperlinks but i cant do this. i am new to JSP. please guide me. here is my code: [code=JSP]<% try{ Class.forName("com.mysql.jdbc.Driver").newInstance(); connection = DriverManager.getConnection(connectionURL, "root", "root"); statement = connection.createStatement(); rs = statement.executeQuery("SELECT * FROM contacts"); while (rs.next()) { %> <a href="viewdata.jsp?value1="+<%rs.getString(1)%>+">"+<%out.println(rs.getString(1));%></a> <%} …  |
| | Hi I have been using java.swing for my GUI programs so far and i kinda hit a brick wall, and i think its a stupid one on my account, i cant find a way for something to load a html file to the screen using a java.swing control. This is …  |
| | Hi When using java, for almost all the time i just use java.swing for my applications that i make, yet when using other programming languages i often find that the GUI toolkit that comes bundled with the download of the Development Kit, is not quite as good as some third … |
| | i have 2 combo box country and state if i select any one of the countryin first combo box automatically partcular state shoudl display in second combo box ...can u tell me javascript coding for this ? |
| | Hi everyone, I am trying to insert a image into the jtextpane using the html document as the default document for the jtextpane. It seems that nothing happens when i try to insert the image from disk. htmldoc - an instance of the HTMLDocument class TextPane1 - an instance of … |
| | Wel, I have discovered, how to copy one text file to another,yet. (See code bellow). However, I really need to Cap every word in the source text file and copy the text that way to the second file. But I'm desperate. I tried few ways to make it (via Character.toUpperCase()) … |
| | Is It possible? Tried this but all i see is blank haha [code] while (rs.next()) { String c=rs.getString("ProductID"); String d=rs.getString("ProductName"); String e=rs.getString ("ProductImage"); out.print("<option value="+c+"><img border=0 src=\"picture/" + e + "\" width = \"170\" height=\"157\"></option>"); } [/code] ANy one with recommendations on how to make a picutre based drop down … |
| | I will be starting working on perl and java soon.. Can anyone please help, form where to start so that i get the confidence of working on it and i can do hands on. |
| | hi guys how r u doing .. i am trying something in java .. i want to know if there is a way to the java looks into the current year. i want to be to return the age of someone after filling in his birth year .. and then … |
| | [code] stm =con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); rs=stm.executeQuery(qry); rs.last(); String s=rs.getString(1); [/code] I have backend as sybase. But above code is throwing an error as follows: [code] Error [Sybase][ODBC Driver][Adaptive Server Enterprise]HEADERFORMAT1 not found. Specify owner.objectname or use sp_help to check whether the object exists (sp_help may produce lots of output) [/code] |
| | Hi, I've just started a Java course, which is giving me trouble because I've had so much unscheduled overtime. I have three programs due that have small problems that I can't fix no matter how many changes I've made. They are really basic, but I've only been one week into … |
| | i wont to use shocket programming to create a chat client. and the end users should be given a GUI interface. are there any sample codes available online .. please help me find some sample codes.. |
| | I'm in the process of writing a program that generates six random numbers. If I run the program I have so far, there's a bit of a problem. It is possible for this code to generate the same random number more than once. Generally speaking, lottery tickets require the numbers … |
| | Im trying to make a counter that tells how many times a name appears with array. I am using a scanner that read the names from a file and stores it an array. It then uses random class to pick a random name. I then stored all the names that … |
| | Hi all. I have string contains xml content. I use dom xml parser. Below is my parse code. DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document doc=builder.parse(new InputSource(new StringReader(xmlText))); It works but very slow. too slow. If i write xml to file and parse from file like builder.parse(filePath) then …  |
 | Okay, I am a new student (to Java--well programming in general) and the first assignment we have is to create a program that computes the future value of an investment based on three user inputs (principle deposit, interest rate, and length of term in years). First of all, I am … |
| | Hello, I downloaded some code from coreservlets.com and put the code on BEA WebLogic 8.1. The code is actually from ch4 of the book "Core Servlets and Java Server Pages (Hall/Brown)". I wanted to run a particular html form that one fills out then goes to a servlet. The html … |
| | I'm new in Java and supposed to write a program that prints a number into a diamond shape. It doesn't print correctly, can someone point out where I'm messed up? [code] private static void diamondOfAsterisks(int number) { int spaces = number / 2; int stars = 1; int row; int … |
| | Hello!!! For my assignment I have to develop small library system. I'm doing ok, I'have developped borrower and book classes and they work just fine... I was wondering if anyone could just suggest how to implement copies for the book. (Sometimes the most popular books will have more copies)I'm not … |
 | I need a code that when I'm given two number, the computeer gives me back 4 integers ex) user gives me: "3 & 6" The computer displays back: "3,4,5,6" |
| | Can someone point me in the right directions. I have to build on an existing mortgage program. I have to pull interest rates in from an external txt file and have them populate my array. The array will then be used in a combobox pull down. I don't know which … |
| | Hello everybody! I am new to the site and to java. I am in week 2 of my java class now and still not sure if I am enjoying it. Unfortunately I would say it is my weakest link in the IT field so I picked this class on my … |
| | I have 2 .java files called model.java and table.java I have 3 class files, model.class, table.class and WindowCloser.class (which is in the table.java file). I've looked online on how to make a jar file, but whenever I try, either nothing happens or it says Main-class not found. table has the … |
| | With the code below I am getting an error reading long cannot be dereferenced, how can I solve this problem? [code] import java.io.File; public class TestingClass { public static void main( String [] args ) { File actual = new File("."); for( File f : actual.listFiles()) for( File e : …  |
| | [ICODE] import java.io.BufferedReader; import java.io.FileReader; import TokenizerProcess.StringTokenizer; import javax.swing.JOptionPane; public class ReadFile { public static int count = 0; public static String[][]file = new String[6][3]; public void isReadFile(){ SubjectInput input = new SubjectInput(); try{ BufferedReader reader = new BufferedReader (new FileReader("SubjectFiles/subjects.txt")); String line; while((line = reader.readLine())!=null){ StringTokenizer tokenFile = new … |
| | I am writing a program in which I have done ALOT of coding already but there are still problems and features to be added. So far my program: 1) Takes data from a .dat file and displays it on a table 2) There is a button for which you can …  |
| | Can u people help me in getting java code to transfer files (FTP) over the LAN.Give me the complete code for this. I wan that a FTP request to be send to the desired host and if the host accept the request then the browse menu be opened that allows … |
| | I am using asp.net 3.5(visual studio 2008) and sql server 2005/2000. I want code for validation of Account number and password. i.e. when user enter the Accountno and password and click submit button it should check the data with that enter in database. If it is correct it should go …  |
| | Hello, have a good day everyone. I am confused if what elements are to be inserted in a queue. Are only numbers can be inserted in a queue? Are letters or word(e.g."Subject") can be inserted in a queue? Thank you ahead everyone. Have a nice day. |
| | I am trying to figure out how many ways you can go if you only take one or two steps. For example. If the number is 4 there are 5 ways you can move going one or two steps. I have to do it with recursion. I have the following … |
| | [CODE]public class table extends JPanel implements ActionListener{ JButton addInfo; public table(String dataFilePath) { JTable table; model model; Font f; f = new Font("SanSerif",Font.PLAIN,24); setFont(f); setLayout(new BorderLayout()); model = new model(dataFilePath); table = new JTable(); table.setModel(model); table.createDefaultColumnsFromModel(); GridLayout layout = new GridLayout(80,30); addInfo = new JButton("Add Data"); addInfo.setSize(80, 30); addInfo.addActionListener(this); //action … |
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