32,204 Topics
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| | I have to have Tetris made in Java in 3-5 weeks, but I haven't started, and have no idea how to start. I'm not asking anyone to make the game for me, I just need a general idea of what to do to get things rolling. Firstly, what classes should …  |
| | I need help fixing my telephone keypad application, it will compile but when I run it, it doesnt work someone please help |
| | Hi everyone, hope all is well I have a project which models an ATM machine. There needs to be an option in the welcome screen where the user has the option to set all of the numeric buttons in each class to a certain colour(red, blue or yellow). Because all … |
| | I am trying to override setColour in the subclass callled ObjectB in the public void setColour(Colour xColour) method. So the OBjectB cannot change to purple. Can you see where I have gone wrong because the ObjectB is currently changing to purple colour. Please reply only if you know the answer. … |
| | Hi......... can u tell me how to use rs.getUnicodeStream(1); where rs is ResultSet Object and 1 is the column number and what type of value it retrieves from the DATABASE |
| | I need a java code for downloading files from the internet ..For example I want to download doc,pdf files from the internet means i have to do it through my code ..So can anyone help me  |
| | Hello and thanks in advance for your time. Trying to learn how to throw App Exceptions. Is there any way to get this exception from properties so I can pass it to a JOptionPane? Model Resources UserException=Subscription failed. \ Please try another email address. ProfileException=Must Select a Profile \ UnenrollException=Unsubscription … |
| | Okay so I'm supposed to write a report describing the classes and interfaces I will use to implement a popular online photo management system called flickr ([url]http://www.flickr.com/[/url]). I don't need to implement any method but just figure out the design based on [url]www.flickr.com/tour[/url] section of this site. I must have … |
| | I have a variable that contains the name of another variable. I intend to read the contents of the variable name. how? |
| | hello can you help me when i click the add button it will not add to the database.it will generate an error..can you help me please hoping for your positive responds...here's my code,please see my attachment.... [CODE] import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.JPanel.*; import java.sql.*; public … |
| | rectangle r1=new rectangle(); rectangle r2=r1; whats the working of second line here |
| | a print procedure is a good candidate for a dynamically bound method. why? |
| | I have three classes in the program. This is a part of my assignment. I am doing it for the first time; so you might find something stupid in there.. as i have just tried to get the output my way or based on the assignment requirements. I have one … |
| | i hv written code of seraching specific folder on user choice with threading implemented. but im getting nullpointer exception at l.statsWith() in thread class two and not with normal searching [CODE]public class onlyfolder { static String z,l,w,e; static String y; static File f; static JFrame frame; static JPanel panel; static … |
| | Hey guys. I have a tic tac toe game that plots random X's and O's on a 2d matrix array called theBoard[row][col]. I want to check to see if one X is placed on 1 spot, and if another point is plotted in the same spot, to check if it … |
 | I'm pretty lost on this. I have no idea how to get my program to work. Basically, when an option is selected a price should show up in the text box automatically. Thank you all for your help. Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.JComboBox cannot be cast to javax.swing.JTextField at … |
| | Morning People I seem to be having a pretty big issue with a buffer I have that is reading a text file and acting upon the results of the file, As of now, the buffer reads each token in the file, and stores each token into a variable, this is … |
| | I have to create a program that makes a lottery like game. My teacher wants me to use the constructor to initialize all the fields but I can't seem to get it to do that. Everytime I put the fields in the constructor initialized, I get compile errors. So right … |
| | Hello! I am having a bit of difficulty calling a function in my class Image. The point of the class is to generate a 2D array of Color instances, then do various things with it. Within my test code, my editor simply will not allow me to call any methods … |
| | I have: [CODE]JButton b1 = new JButton(); b1.setForeground(Color.BLUE); the button labelled b1 turns blue and all is working, However is it possible to use some function like: String ButtonColor = "BLUE"; b1.setForeground(Color.(ButtonColor.getText()));[/CODE] I ask this because i want to get the colour from a different class.. Any help appreciated thanks! |
| | I am writing here, asking you for a little help. I have assignment in Java for my class in programming. I should create Java Applet and make animation. The animation should consist of several bouncing figures (balls, triangles, squares etc.) and when clicking on them different events should happen. One …  |
| | The group has now been divided, my problem scenario is the following: There are 2 packing machines, which can pack any type of food, however this needs to be done one at a time. Each food type takes 10 secs to pack. The packing machines get the food from the … |
| | Hi I am new to java and I am stuck on an assignemnt and im looking for some suggestions basically i have 8 buttons delcared as an array and i would like to double a number enetered in a textfield when clicking a certian button ..... i want each button … |
| | Need Help Solving this problem... How do I start my for loop to display the 7 district aestricks  |
| | Hi just wondering could anyone help me with this tic tac toe game i am developing it must be a GUI and include AI for the computer i originally made this tic tac toe game without the GUI but i am just having problems converting it to a GUI as … |
| | Hello guys......Cindy here I am trying to get my program working and I am getting really frustrated. I am writing this program to familiarise myself with arrays, methods & loops so i can improve my Java skills. Im not lazy guys and have tried searching yahoo ,answers, forums and google …  |
| | Can someone help me with this please. [CODE]import java.util.Scanner; import java.text.NumberFormat; public class ChargeAccount { private int additional_charges; public int balance; private double min_payment; private int interest; private double new_balance; //initialise Charge Account public ChargeAccount(int previous_balance, int add_charges); { balance = previous_balance; additional_charges = add_charges; Scanner scan = new Scanner … |
| | Hi Guys, I've noted that when using Netbeans, .jar file is created when you build your application. if i want executable jar file of my application, can i just take the same generated jar file, or should i create my own .jar via the command prompt. I mean whats the … |
| | I am new to this place and have a lot of questions to discuss with all here. Starting with a problem that i am currently stuck in..:) I have a small project for which i am using net beans and want to generate the graph as I am having values … |
| | i had stuck with this question cz i'm newbie for java programming. i hope ur helping... The Vote class has the data field count to count votes, and the methods [I]getCount(), setCount(), clear(), increment(), and decrement()[/I] for reading and handling the votes, as shown in class diagram below. The [I]increment … |
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