[java] Forum Topics

hello guys im a newbie in programming pls. sdvice what java programming book should I buy. pls... for the newbie ^^

Hello, I am working on a server-client app but I am facing a problem. The problem is that I don't know how to do unmarshalling properly. As an example. The client sends a request to obtain alist of existing blog records from the server. The server connects to the DB, …

I'm resizing images (making them smaller) and am wondering if there is a programatic way to determine the variance of an image using JAI. High level, I want to be able to tell when I've scaled an image down so much that it no longer looks good. I understand that …

Hey all, i have written a short program which outputs a basic Histogram in this form: (0-25) *** (26-40) **** (41-75) ** (76-80) **** (81-100) ** I'm required to alter my solution so as well as that it also outputs it vertically so i'm after something like this: * * …

Hey guys, in my programming assignment I need to split the mantissa and exponent and add them to two separate variables. so £1.88 would be [CODE] double amount = 1.88; //then after the conversion mantissa = 1; exponent = 88; [/CODE] I've looked at this a lot over the web, …

Hello friends, I have a Customer class (Parent class) and Member class (child class which extends Customer class). the coding is like this [CODE] public class Customer { String name; } public class Member extends Customer { int memberID; } public class Tranasaction { public void printTransaction(Customer customer) { if(customer.memberID …

Hi! I have a Java application that works with MySQL DB. Until today I used latin alphabet, but now I would like to extend my application to working with cyrillic alphabet. As far as I know, it is possible to use UTF-8. But I don't know the way, in which …

Hey all. I have a deadline tomorrow, and this thing is killing me, so I come to you with hopes of help. I have a couple of classes. An info class, which converts a string to ints and puts it in the [B]values[/B] array. Another class (plotter), is supposed to …

hello. I want to know if its possible to develop a mobile application using java language.

Hi, This is lokesh from india,completed B.tech (computer science). Right now looking for job. me positive thinking and very confident not over confident. my hubbies are playing chess and traveling long trips and love to make friends around world.

Hello! I'm new in java. I need some help, guys. How can I determine in Java next run time of cron-like job? For example, if I have crontab entry without command, like [I]"*/15 * * * *", every 15 minutes "5 */2 * * 1", every Monday at 00:05, 02:05, …

The question is if x >=1 then i creates the array if not then it defaults x to 1. [QUOTE]Zoo has one constructor which takes an int as a parameter and uses it to instantiate the array animals to that size, and it also sets count to zero. It should …

I have 3 combobox in my index.jsp file. I have filled first 2 combobox with data's from database... Now i have to fill 3rd combobox with the values which i have in java file such as: [code=Java]private static String[] types = { "Vehicle Reporting", "Vehicle Revisits", "RO - JDP Count" …

Hello all: The task is to: Create a row of Alien attackers, class RowOfAlien, patterned after the partially filled array. Put five Aliens in the row. When the row hits the left or right of the screen, the Aliens snake downwards (see demo). Note that this is different from the …

I have problem how to calculate mutiple checkboxes on the panel. ex: 24 roses with a bear: This costs $72 or 1000 points and $12. 14 Lilies: $24 or 360 points [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.border.*; import java.io.*; import java.text.NumberFormat; public class customerInfoGUI extends JFrame …

Hello friends, I am new to java and enum use. Actually I need to give only 3 options to customer for Payment Type. So i thought of using enum and making the limited members of Payment [CODE]enum PaymentType { CHEQUE, CREDITCARD, CASH }; public void Customer(String name, PaymentType paymentType) { …

I'm a little self taught at java. I have a package: package: package org.newdawn.spaceinvaders there's folders like org and newdawn are created and nested. the main is Game.java at end of those folders. How do i run it? i went to the end folder and typed java Game that didn't …

Hi i am in the final stages of my hangman program and need some pointers. I've gotten to a point where i am stuck and need a fresh pair of eyes to help me go over some of my problems any advice given will be greatly appreciated. [CODE]import java.util.*; import …

Hi all, I have a simple question that I can't find the answer to i'm using the following Exam.java (interface) ExamImpl.java (implementation) ExamFactory.java (interface) ExamFactoryImpl.java (implementation) The ExamFactory interface says the newExam() method return type is "Exam" The ExamFactoryImpl code currently returns "ExamImpl" Is this a problem?? i.e. Are Exam …

PLEASE COULD YOU HELP ME IN CREATING A DOT GAME IN JAVA? ******************************************************* THIS IS MY ASSIGNMENT *************************************************** Design and develop an interactive visual 'stand‐alone' event‐driven Java application implementing the “Dots Game”. This is a two‐player game in which each player clicks in turn on a dot from a matrix …

string.indexOf(letter) checks for the first occurence. what can check for all occurences public class Hangman extends ConsoleProgram { private static final int MAX_NUMBER = 9; private RandomGenerator rgen = new RandomGenerator(); HangmanLexicon lexicon = new HangmanLexicon (); private static boolean end; private HangmanCanvas canvas; private static int x = 30; …

[ICODE]Ok, I am typing up a program in which will play hangman with a user. I have done most of the program, but I have to let the program randomly choose a word from the list of words stored in your array. Afterwards, it should clear the screen and display …

Ok, Iam now doing my last assignment for my class. Thank god. lol Well I have to make a problem that will write an interactive Java program that allows the user to play the game of Hangman with words that are given to me from a file. Here is what …

Hi, I'm trying to use JAVA GUI for first time. I've got a Jframe that when loaded adds a jpanel. the problem is it will not show any swing controls that get added to the jPanel. I'm using netbeans 6.9.1. any idea to why is happerning would be greatful [CODE] …

* This program inputs ten integers and * displays the mode using parallel arrays. * Use a method to calculate the mode. This is my specs. I cannot figure out a solution as to how to find the mode using only two arrays. Help would be gratefully appreciated

I have problem how to calculate mutiple checkboxes on the panel. ex: 24 roses with a bear: This costs $72 or 1000 points and $12. 14 Lilies: $24 or 360 points [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.border.*; import java.io.*; import java.text.NumberFormat; public class customerInfoGUI extends JFrame …

Hello Friends I have This important question about implementing double link list I have done it but it dosenot work , please try to find what is wrong.. Thank you but I need this work queckly... [COLOR="red"]CLASS LINK LIST:-[/COLOR] [ICODE]public class LinkList { [I][/I] public class LinkedList<T> { private DoubleLinkList<T> …

guys good day!! i need ure help with this problem. we are going to make a program. 1. Store first memory location og program into base register (for memory protection). 2. Set program counter (it keeps track of memory space used by the program) equal to address of first memory …

I have two classes.CyberLibraray and CyberBook These are the requirements: Design a CyberLibrary class which houses CyberBooks. Because of local laws, the CyberLibrary class has a limitation: the maximum number of books is 200. The CyberLibrary has the following constructors: Constructor #1: the default - Creates a CyberLibrary with the …

[code]abstract class foo { abstract void bar( ); // <-- this is ok abstract static void bar2(); //<-- this isn't why? } [/code]why can't I define an abstract static method?