32,204 Topics
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| | Hi all..... i want to make connection between pc and mobile via bluetooth using java, and i want to send/receive text between them plz help me to do this thx :)  |
| | I have two files, an application file and a class file. While they both run without errors, the application file returns a null when I run it. Here are the two parts that dont seem to work? Can someone tell me waht I am doing wrong? App file code: Invoice … |
 | Howdy, Im getting the "'.class expected" error and I dont know what to correct. The code is [Code] import java.io.*; public class TeamHeight { public static void main (String[] args) throws IOException { double[] height = new double[11]; double sum = 0; System.out.println ("The size of the array: " + … |
| | This is due Sunday, and I still do not have all of my errors out of the way to see if it runs correctly. Please help I am down to 16 from 20. Errors: ompiling 1 source file to C:\NetBeansProjects\SCHOOL1\JavaApplication55\build\classes C:\NetBeansProjects\SCHOOL1\JavaApplication55\src\javaapplication55\Inventory6.java:146: ')' expected getProductName(), getProductNumber(), getBaseAmount(), getBasePrice() getProductYear() ); C:\NetBeansProjects\SCHOOL1\JavaApplication55\src\javaapplication55\Inventory6.java:146: … |
| | Hi, I have a swing app where I am using (among other things obviously) an editable JComboBox and a jButton. when the JButton is clicked, it does some processing and uses the value in the JComboBox as one of it's inputs. I'm finding that everything is fine when: - The … |
| | [code]/*Imports Java library files*/ import javax.swing.JOptionPane; import java.text.*; /*Filename for programs class*/ class KwikKapers { /*Runs program- method*/ public static void main(String[] args) { KwikKapers optpane = new KwikKapers(); } /*Constructor*/ public KwikKapers() { /*Instruction to begin start menu method*/ Startmenu(); } /*Method for main start menu*/ public void Startmenu() …  |
| | We were asked to create an applet in which it will get the current date, then the user will input a number (n), when the user presses 'ok', the date+n after will display. Here is my code so far [CODE]import java.applet.*; import java.awt.*; import java.awt.event.*; import java.util.*; import java.util.Calendar; import … |
| | HI I need some help on how to go about in java program to design a Strict two phase locking schema. where the input file is given as notepad and input as follows through a notepad as follows b1; r1(Y); w1(Y); r1(Z); b2; r2(Y); b3; r3(Z); w1(Z); e1; w3(Z); e3; … |
| | [CODE]import java.applet.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.JOptionPane; import java.net.*; public class User extends Applet implements ActionListener {Label lblUser = new Label("Username:"); Label lblPass = new Label("Password:"); TextField fieldUser = new TextField("",10); TextField fieldPass = new TextField("",10); Button btnOk = new Button("OK"); URL order; public void init() {add(lblUser); … |
| | hello everyone I still need code snippet help with authentication of username and password on both java and web application..  |
| | I would like to make two JList's with DnD from one to the other and in it self. I created a TransferHandler like this one in the java tutorials: [URL="http://java.sun.com/docs/books/tutorial/uiswing/dnd/dropmodedemo.html"]Tutorial-Page[/URL] Now I can drag and drop from one to the other. I works also if I move one list element … |
| | i have been given a 2-phase compiler containig the lexical phase and the syntax phase as my final year project. for that i need to know how to call a C program from a Java applet using a button called "compile". A little help will make me thankful. |
| | Hi all. I have a problem when I am trying to run an application on my mobile. The app compiles on netbeans, but when I copies it to my mobile telephone, it sais: java.lang.NoClassDefFoundError. I have been told that I should have references to everything and that i might need … |
| | [B][/B]Hi, I am using cruise control on Windows XP. We have CVS as our version control tool. I am using the following four files to achieve build of my code. 1. config.xml (This file is present in cruise control directory and it calls up the file 'tc-build.xml'.) 2. tc-build.xml (This … |
| | So far it looks pretty good, except in the GUI I can not get the Modify, Save, Delete, Add and Search buttons to work. They produce error codes : Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javaapplication54.ModifyButtonHandler.actionPerformed(Inventory6.java:488) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6041) at javax.swing.JComponent.processMouseEvent(JComponent.java:3265) …  |
 | We have got a good way to upload a file in struts framework, using enctype="multipart/form-data" and using tag html:file. But in one of my applications I need to use a PNG image for the functionality of html:file. The reason is, I cannot make the textbox of html:file readonly. The user … |
| | In part of my coding I know have this... throw new UnsupportedOperationException("Not yet implemented"); what does that mean, and what do I do with it? |
| | ok heres what im currently doing... [/code/] (autocast)) == (15348) { cast manual with spell 1155; spell cast starts at position X Y; } } } } } itemID)) == 15348 { } return 406; { Case 1505: UsingMage) = true; else if (ItemID == 15348) [13] > 70 caster … |
 | i want to make a code template in netbeans with the abbreviation of cn that will expand into the name of the current class being worked on, is there a way to do this? i cannot find anything about it. google won't turn up any good info |
| | I've soome buttons in my coding. It has some values. I want to add those val & display in a text box. When u press a button the amt has to be calculated. I tried bt it's not working.How can I do this? I need quick reply. This is my … |
| | :$ Ok people, bare with me for a second (or 60...) I'm developing a part of a larger application, and to cut to the chase, i now need to access an Hashtable that I've made global. This aplication is multithreaded, but I'm trying to access this hashtable from the same … |
| | In my java code I get this error. Enyone fix it for me Plz? cannot find symbol `:method getSelectedItem()` This is my code. import java.awt.*; import java.awt.event.*; import java.applet.*; public class soda extends Applet implements ActionListener, ItemListener { Label lblhead,lblfoot,lblsize,lbltype,lblamt,lblbal,lblavilability; Button b1,b2,b3,b4,b5,b6,b7,btnref; Choice choice1; Checkbox ch1,ch2,ch3,ch4,ch5; float num,money,change; CheckboxGroup cbg,cbg1; … |
| | hi sir, im a newbie in Java programming.. can u give me some tips or source.. that can read a file.. throughly and write to the file.. that can add more information to the .dat file when it adds or save more info to the existing file.. thanks a lot … |
| | Hi All, I want to make a SQL parser in Java which will give the names of view ,column names in select clause,and table names in 3 different arrays. This is the SQL Query which is there in text file. create view NAME1 as select a.col1 as alpha, b.col2 as … |
| | Hi Lads, I'm trying to read from one spreadsheet, extract the contents of certain cells, and write them into a new spreadsheet. I've read from one spreadsheet fine, but when I try to write to a new spreadsheet, the output file is empty and I can't see why. Can anyone … |
| | hello to all!!! i really don't have any problem this time, but there's something i wanna learn more about! we are discussing classes and inheritance now!! my professor have given us quite examples of it....but it wasn't that clear!! can i ask for a simple codes that implements a class …  |
| | hi everyone i really need help with my problem, i have created a full online tutorial using applets however one of my html pages containing this particular applet will not show the applet when viewed in any broswer. The applet contains an image and without the image the browser shows … |
| | I'm new in java programming but somehow I understand little especially basic because I have a background in Vb6 I find it difficult because it has lot of java keyword that I dont understand. Now, I need your help to defend this program in our class. Help me please. If … |
| | I have a file containing different tags and datas like: VERSION: 1.1.1 NAME: xxx VALUE: 1.5 START_IMAGE ‰PNG.... END_IMAGE i can't change this file....it is not mine... But i need to read the png image between the START_IMAGE and END_IMAGE tags. I don't know the length of the image-data. How … |
| | Does java has toString function? eg : txtamt.setText(toString(num)); But it doesn't work. Plz give me the right method.  |
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