36,051 Topics
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| | So We will create a java program but i don't know how to start it. We should use OOP in this one. And there should be minimum of 3 classes (including the main).. Buy n’ Sell An electronics and appliance store would like to install a kiosk for customer use. …  |
| | im new to java and need help with this code. i need to show stars to represent the numbers which have been entered. so far my for loop is only showing the one star, how can i get it to show the number of stars which represent the amount of … |
| | I want to create linked list of type LinkedList<LinkedList<Integer>>. I plan to take integer values from user (via console), create a linkedlist by adding the values. Create multiple such linked lists and then create a master linkedlist which will have individual linked lists as its elements. Example: User types 1 …  |
| | Hello all. I have a string, e.g. "Testing" and I try to convert it to byte but I get a NumberFormatException. I tried with (byte), Byte.Parsebyte. Any help? thanks |
| | May I know how to find the largest number in an array? |
| | Hi guys, This week Ive been given a problem to: Take a set list of English phrases and convert them to a set list of pirate phrases. i.e. Hello would be entered by the user and Ahoy would be printed etc. My idea is to create two arrays, One will … |
| | Hi, I have a task which involves using a queue in order to fill an enclosed region. For example I have chosen this 2d array to apply a flood fill technique to. [CODE] int[][] shape ={ {X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X}, {X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,X,X,X,X}, {X,X,X,0,X,X,X,X,X,X,X,X,X,X,X,0,X,X,X,X}, {X,X,X,0,X,X,X,X,X,0,0,0,0,0,0,0,X,X,X,X}, {X,X,X,0,0,X,X,X,X,0,X,X,X,X,X,X,X,X,X,X}, {X,X,X,X,0,X,X,X,X,0,X,X,X,X,X,X,X,X,X,X, {X,X,X,X,0,X,X,X,X,0,0,0,0,X,X,X,X,X,X,X}, {X,X,X,X,0,0,0,0,X,X,X,X,0,X,X,X,X,X,X,X}, {X,X,X,X,X,X,X,0,X,X,X,X,0,0,X,X,X,X,X,X}, {X,X,X,X,X,X,X,0,X,X,X,X,X,0,X,X,X,X,X,X} {X,X,X,X,X,X,X,0,X,X,X,X,X,0,X,X,X,X,X,X} {X,X,X,X,X,0,0,0,X,X,X,X,X,0,X,X,X,X,X,X} {X,X,X,X,X,0,X,X,X,X,X,X,X,0,X,X,X,X,X,X} {X,X,X,X,X,0,0,0,0,0,0,0,0,0,X,X,X,X,X,X} … |
| | Dear team, Hi all i have implemented google data api in my project. I have downloaded the api from the below url.This api is used to delete,add,update the google contacts.I have successsfully add ,list the new contacts. [url]http://code.google.com/apis/contacts/docs/3.0/developers_guide_java.html#GettingStarted[/url] But i do no how to delete the contact using this api … |
| | Hi! I would like to change the string: [ICODE]"reg_num, reg_date, attached_file, Description"[/ICODE] to the new string: [ICODE]"reg_num, reg_date, Description, attached_file"[/ICODE]. So, what I need is to search the substring "attached_file" and put in at the end of the main string. How could I do that? Thanks! |
| | dis is my first page regpage.jsp where i am filling all data when i click on submit it calls insertreg.jsp i can see in browser but it doesnt display anythin.Please help me. Thanks, Sarika [code]<%-- Document : index Created on : Nov 4, 2010, 9:32:00 AM Author : sarika.sharma --%> …  |
| | Am writing this program using two classes for my school project from last 4 days. I have completed this program I think but when am running this program, it shows no error also it doesn't show any logic or runtime error..just got blank screen after compiling. Am wondering that why … |
| | can you guys help me with my assignment given to me, my prof. said .. create a java class that will accept four Integers & develop a method that will arrange the accepted integer from highest to lowest. example: if you enter random number like: [B]10 6 7 9[/B] the …  |
| | can somebody help me to put an action in a button that comes from a different class. Specifically t [code]import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; class LogIn implements ActionListener { private JFrame f,f2; private JButton jLog, jCan, jReg,jOk; private JPanel j1, j2, j3, j4,j5,j6; private JTextField jText; private … |
| | Hello! I was curious if i could help any guidance on my problem. In my program i have the following class. [CODE] class Match{ String File; String Area; int Score = 0; //public Match(int Index ){ public Match(String File,String Area, int Score){ this.Area = Area; this.Score = Score; this.File = … |
| | I understand that this code will not run because i have 2 string and 1 float type in my text file and i am storing them as int's but how do i do this?.. please someone help me this is so frustrating Here is my .txt file [QUOTE] 100 200 … |
| | I am having serious trouble and i don't know what exactly I'm doing wrong can someone please help. Here is the question ? In this assignment you will create a console (standalone) application. This program will allow you to select MegaBall lottery numbers. For the first 5 numbers you will … |
| | GridBagLayout question My main class holds frame and gets left and right panels from other classes [CODE] /** * Matthew Schrum * 11/14/2010 */ import java.util.Random; import javax.swing.JFrame; public class Sim { public static void main(String[] args) { //variables LeftPanel leftPanel = new LeftPanel(); RightPanel rightPanel = new RightPanel(); //GUI … |
| | "LeftRightPanel.java:45: setText(java.lang.String) in javax.swing.JLabel cannot be applied to (int) label.setText(num1);" I'm guessing that this is because I'm trying to imput a int in a line where there's supposed to be text. Can I do something like .setNumber, .setNum, or .setInt? Or is this an issue that I need to adrress … |
| | new in here, new in java world and new in programming at large, but i believe i can learn with the help of professionals and educators in the house. Don't be surprise am staring from such task as a newbie, it 'cos am made to believe i must find a … |
 | The below method is for my database assignment, and we are supposed to check if the "username" the user adds is already in the database. Somehow "newRecord.username = sc.nextLine();" this line does not work, the second time through the do-while loop It seems like it just ignores the line or … |
| | I need to make a string by using a loop to a method from ohter class that is named speak(), and is seperated by a \n the problem is in the class public String allSpeak() [CODE] /* public String allSpeak() ( if (count = null) { System.out.println("No Animals to Speak"); … |
| | For the final part of this assignment I need to do the following: Any help/advice/starting pointers would be great! 1) 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 … |
| | Hello all! I am starting to write a little roulette game and while trying to print out my arrays to make sure they contain the correct values the compiler keeps screaming this at me: "non-static method .... cannot be referenced from a static context" Any pointers would be greatly appreciated! … |
| | Hello everybody, I need advices about software development. I'm not an all-knowing-programmer so I have a few questions about it: - My application's GUI is getting ready to be developed. I want it primarily to run on Windows, Linux/Unix and Mac also. But I also need it to be looking … |
| | 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 … |
| | Hi all, I just wanted to know that which is the best and cost effective web hosting service provider for jsp,servlets and Mysql database. thanks  |
| | 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 … |
| | Can anybody guide me to create a calendar editable by the client by selecting a date in jsp/html |
| | 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 … |
 | Hello Just like we have some addons which enable us to download flash movies from webpages in firefox, is there a similar tool which can download javascript animations from webpages? |
| | 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 … |
| | Hi i am a java learner.Can anybody pls guide me abt struts in eclipse |
| | 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 … |
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