[java] Forum Topics

so we where tasked to make a tic tac toe w/ out gui or even using array so here's what ive done so far its still far from complete but i cant seem to get the result i want but since this is just a test class that would be …

I have been trying to create a script that will fetch an image file, store it in a 2d grayscale non-alpha byte array based on the x and y axis so I can perform math operations then save that array back to a new image file. I have come close …

I have a java exercise follow: there are n machines of 3 type A,B,C, each machine has coordinates (x,y) and operate radius, with data get from a XML file, for instance: <machine> <number ="1"> <type>C</type> <cox>40</cox> <coy>80</coy> <rad>30</rad> </number> <number ="2"> <type>A</type> <cox>25</cox> <coy>35</coy> <rad>40</rad> </number> <number ="3"> <type>C</type> <cox>50</cox> …

Hi, i recently begun learning java and encryption. I found some code from a website that is supposed to decrypt lastlogin files found in minecraft. When i try to compile it gives me these errors: C:\Users\CROCCY\Documents\NetBeansProjects\Lastlogin decryptor\src\lastlogin\decryptor\LastloginDecryptor.java:54: error: invalid method declaration; return type required public MineCraftLoginReader() { C:\Users\CROCCY\Documents\NetBeansProjects\Lastlogin decryptor\src\lastlogin\decryptor\LastloginDecryptor.java:87: error: …

hello <input type="date" name="dob" required> this is the html5 date picker String date=request.getParameter("dob").toString() how to get value from tat date picker

Hi guys, I tought I'd experiment a bit with layout managers, trying to get to grips with them. I will start with a flowLayout, then hopefully move on to more complex ones. OK, so here is the code for the first example, very simple one: /*FlowLayoutManager.java layout manager tests*/ import …

Hi, i am using netbeans 7.0.1, When i copy a table from ms-word document and paste it in editorpane or text area palette, i am unable to retain same table strucure i.e with no borders.How to do it and which control i have to use. Thanks.

THIS IS A NO GUI TEST. GUI COMES AFTER THIS IS DONE. " i hope to learn from this so i can use it on the gui " :D i have my database : friends , table : info , values : (name ) : dragon , (address) : china …

I'm very much interested to develop Network IDS for my final year project , but I'm beginner to this Network security domain.Need some suggestion and some resources to develop this project.please help me .

Hi im building a JavaFX project and am using JavaFX Scene Builder 2. I wanted to link my controller to my fxml file but i can't see the possibility to add a controller to my fxml file in Scene Builder 2. I was wondering if someone could help me out. …

Hi! I'm making an app and I need to know how to set position of strings in java. Here is a code: import java.awt.*; import javax.swing.*; public class Draw extends JFrame{ JPanel panel; JLabel string; public Draw(){ super("CO-LERNER"); setSize(300,150); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); setLocationRelativeTo(null); string = new JLabel("Example"); panel.add(string); add(panel); } }

Hi. I am learning Java and now stuck in the exceptions chapter. I wrote a code to understand exception. But i am not getting why there is an error saying "Unreachable catch block".Please help me out here. Code is as shown. public class GetException { static int i; public static …

I'm basically wanting to design a java questionaire gui (not on java) basically just a program that holds a bunch of questions and the corresponding correct answers. So the question i would imagine i would make appear on the label and then having four possible answers a b c and …

Hi! I need a bit of help here. I started a new project and i need to know how to set position of JLabels(strings). Can I just set pixels or use Int x = 300, Int Y = 400?? I realy need help. I will be thankful for all the …

I am beginner to Java , I would like to know is there any Difference between JDK 32 bits and 64 bits? For example in terms of performance or something ?

/* * In a hypothetical real-estate themed board game, a player rolls two dice to *move their token around the perimeter of the board by the number of squares *shown on the face of the dice. At each spot the player lands, he or she must *take an action, either …

I am relatively new to java and am having trouble using a cardlayout. When I press the button to switch cards I get a nullpointerexception but I do not understand where I could possibly have anything set to null. Any help would be greatly appreciated. This is my error... Exception …

am developing an desktop application ,for that am providing trial licence for 30 days.But if 30 days over ,if we change system date and time ,it will again back to the 30 days trial period ... how to overcome this...

I am trying to retrieve a blob(2) from my newly created embedded database and assign it to the image icon of a jlable (and of course save it back to the database if the image has been changed or altered). I found the following code snippit from another site but …

Write a program that calculates the mileage and/or cost of fuel by asking the user to input two cities. I NEED HELP. MY TEACHER DOESN'T TEACH ME ANYTHING. San Diego, CA and Houston, TX 1473.4 miles Nevada, KY and Alaska, PA 501.1 miles

Good time of day! I'm working on creating an Eulers Method Calculator program. The problem I got stuck on is I don't know how to convert the user's string into a Differential Equation (dy/dx). This is what I have so far: import static java.lang.System.*; import java.util.Scanner; class EulersMethod { public …

I am using the C code with java code in JNI framework (Netbeans).I am getting the following error: Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: C:\Developers\DLL_Key\MainDLL.dll: %1 is not a valid Win32 application Is there something wrong with my c compiling tools? I am using mingw-builds\x32-4.8.1-posix-dwarf-rev5

I am a computer science graduate and want to learn web application development. I have learned HTML,CSS and JavaScript. I have knowledge of Oracle and medium knowledge of C++. Now I want to learn a server side scripting language. I am really confused what language should I learn. Personally I …

Heya all, Right now, i'm working on a small, text-based game, but i'm a bit confused about how to get my coupeling right. at the moment, i have 5 classes: an Item class, an inventory, a player, a room and a 'game' class that loads the game. The game class …

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I`m making a GUI for my java program using Swing Components and Netbeans IDE. My problem is that when loading a frame from another frame then newly loaded frame shows the contents of the old frame when moving mouse over the new frame.Please help me o avoid this.Am using drag …

Hello All, I would like learn Java from basics as I am not from IT Domain. Its a new platform me but I have some great oppurtunity if I will learn Java. Please let me know the best way to learn Java for Non-IT Domain. Please note that I have …

Task: Write a program that calculates the mileage and/or cost of fuel by asking the user to input two cities. It only works for two places and not all three, why? How can I put just the name of the location instead of inputting the numbers? package Winterproject; import java.lang.Math; …

Hello all, I am stuck with a nullpointerException at line 41 and 60.Can someone please help me out.any kind of help will be appreciated. Thanks import javax.swing.*; import javax.swing.event.*; import java.awt.Color; import java.awt.*; class calenders extends JFrame { int i=0; int j=0; int k=0; JFrame jf; FlowLayout fl; JPanel jp[]; …

Hi all. Im having trouble getting my menu to work on my window. this is what I have so far as for my code. package sparepartinventory; import java.awt.Dimension; import java.awt.Toolkit; import javax.swing.*; /** * * @author jonathan */ public class SparePartInventory { /** * @param args the command line arguments …