Java Forum

hi i am trying to sum 10 numbers passing them by command line line argument but the problem is it only work with 1 and if i passing other numbers then again it will show the result of number1: code: class arguments { public static void main(String args) { int sum=0; int avg=sum/10;

Hello, I am trying to figure out when I have done wrong or what i have not included in my most recent edit of my payroll code. My code from last week was // Week 2 payroll // payroll program that calculates weekly pay // sentinel-controlled repetition import java.util.Scanner; // program uses class Scanner public class payroll

Hello, I'm new in java. my actual problem is : how can i test if a resultset is empty? I have tested: rs == null rs.next() rs.isAfterLast() rs.last()

i have an inner class and an outer class, both of which have an identically named member. how from the inner class can i reference the outer member? (the example code should illustrate this problem). class Outer { int x; class Inner { int x;

here's the complete lines of errors.. Exception in thread "main" java.util.NoSuchElementException at java.util.StringTokenizer.nextToken(StringTokenizer.java:332) at CsvTest.readFile(CsvTest.java:26) at Trial.main(Trial.java:24) I have no idea what to change here because I don't know what is wrong..please help me out... ...

hi! i tried to get the input through keyboard using keyboard.readInt() method but after compilation error shows "variable keyboard undefined" i don't know how to solve the pbm..plzz tell me...and this is my pgm: import java.io.*; import keyboard.*; public class test { public static void main(String args)

What is the use of printStackTrace() function in java programming ?

What is the difference between JDK 1.4 and JDK 1.5? What special function does JDK 1.5 have? Thanks in advance.

i know math.random can randomly generate numbers, but i want to know is there a way to let the system decides which variable to choose from a and b? i want to set both can randomly be selected (50 - 50) chance?

I have a script that i need help with from school, i have an arraylist and i need to switch that for a HashMap. I would appreciate if anyone can help. THANKS import java.util.*; /** * */ public class Bank

my program is suppose to show my due change and i got it working but my change and coins are wrong how can i improve it thank you..(its supposed to be in java)

Hello, I am writing a client/server application for live video streaming. Could anyone please suggest me a library or framework that eases the work? Thank you,

Hello, I just have a problem with following: i have a .jsp file containing a static html menu and a table cell where i need to include a servlet call result. Servlet is called with the same parameters as the .jsp file. <table> <tr> <td> <!-- Here i need to include a call to the servlet with

I have been given this interface, interface BinarySearchTree { public void insert(Integer data); public int size(); public int height(); public boolean contains(Integer target); }

Hello Group. How can I create an array of Hashtables? I simply tried with Hashtable ht = new Hashtable; but when I put something into that array I get an nullpointer exception. ht.put("Name1", "Value1");

Since I've upgraded my Java to 1.4.2_02, I've noted that it will crate a subdirectory named hsperfdata_SYSTEM under windows/temp and some Perflib_Perfdata_xxx files as well. The problem with these files is that I cannot delete them (it's not own by me ...the administrator!). I have a temporary file clean up utilites which tried to clean up...

Hello public class e29 { public static void main(String args) { String waarde = JOptionPane.showInputDialog(null,"Voer een getal in","invoer getal",JOptionPane.QUESTION_MESSAGE); int aantal = Integer.parseInt(waarde); for ( int i = 0; i < 10; i++) {

I have like atleast 15 errors that say class, interface, or enum expected and I have no idea what that means. Can someone tell me what it is and how I might be able to fix it? Thank you. - Manny *Program Purpose: This program processes the results for the 2008 Democratic and/or Republican presidential primary elections.

Hello, I would to encode and respectively to decode string's. Now ist my question: Is there a Funktion into J2SE 1.4 API? Thanks Alexander Schneider

Hi everyone, I have a program that converts variables long,string,double to byte array here's the code : for long : //CompanyId temp = longToByteArray(CompanyId); for (i=0,i2=7; i<5; i++,i2--)

Hi, My Requirement is to upload the images into database through jsp. For that i write a code .And it works fine .But in that File imgfile = new File("C:/Program Files/Apache Software Foundation/Tomcat 5.5/webapps/test/Blue.jpg"); instead of that i used File imgfile = new File("Blue.jpg"); like that it didn't work. When we browse that...

I am a complete rookie at programming, and I've installed NotePad++ on my laptop so I can practise writing scripts outside of uni. I've also installed JDK v 1.6.0 (Java Development Kit), JRE and JDK Documentation onto my laptop. My problem is that when I try to compile my program in NotePad++ (before I run the application), I get an error...

Greetings- I have a web application that has a form that triggers a server process that I would like to provide a "Searching..." page for. My strategy was to send the browser the "top half" of a web page, including an animated "Searching..." gif. I write the contents of this page to the HttpServletResponse output, and then flush the...

Im trying to display a png image by setting it as a ImageIcon and then putting that in a JLabel. I cant get it to display the image. I am using a null layout as it is the simplest way for me to get everything displayed how I want it to be. Here are the snippets of my code that I think are the important parts. Let me know if there is anything else...

Hi all! I've a (beginner) problem accessing a method on another class. When I execute a method such as: //response to a swing button public void actionPerformed(ActionEvent event) {