35,618 Topics
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| | I have wrrtten code for my mobile application, but while running it in java wireless toolkit, i get a screen that displays the following: " EnvGameMidlet.EnvGame.EnvGameMidletException.java.lang Class Not Found Exception: EnvGame/EnvGameMidlet." What could be the problem. it compiles well but displays that message when run. I am developing it using …  |
| | How can I use the Exceptions I have created below in the Cinema class? [B]//IllegalAgeException class[/B] [CODE] public class IllegalAgeException extends Exception { /** * Creates a new instance of <code>IllegalAgeException</code> without detail message. */ String exception; public IllegalAgeException() { exception="Unknown"; } /** * Constructs an instance of <code>IllegalAgeException</code> with …  |
 | ok, i have to get two mysql tables to work as one. one is called sale_mast_data and the other is called sale_mast_data_h. they both have the same columns. the only difference is that the one with the "_h" has the history of previous shift sales. the two tables both contain … |
| | i have done making a table in mysql database, i was also able to add data through jsp into the database, i can also delete it but i just don't know how to edit or update the data stored in the database, using jsp...can u please help? just codes or …  |
| | I am thinking about becoming a programmer and have a BA in socail science and computer tech certificate. Can I ge a job with just either a C ++ certificate or Java certificate. Which one would be better to take. Please advise. |
| | Hope you can help. Windows XP Sp3 installed. Now Java applets on internet won't work. Explorer settings checked and enabled. Uninstalled Java and re-installed but still doesn't work. Checked Ashampoo Firewall settings and they're OK. Using Avast antivirus. |
| | I seem to be able to load the files in my program. Then I can loop through the lines one time, but if I try a second loop to load the strings into an array that one won't work. Here's my code. I thank you for any help in advance. … |
| | I'm doing a project for a class and it says to write a program that translates code from one programming language to another. It says that my class containing my static main method should be named "Translate". It should take as input source code of a programming language as a … |
| | I am building an xml parser in java which will handle a catalog with some books (that have price and usefulness) and I want to implement an [B]optimum[/B] algorithm that selects the books from the catalog which have the maximum usefulness while staying within the budget. Example: [code] <catalog cash=”100”> … |
| | I m working on a crawler and want to hash the urls that my crawler is crawled already. I have used hashcode() function but it is returning a null value. Is there any other efficient way for hashing them .Also i want to know abt hash functions related with string … |
| | I'am making a mini project on telephone directory management system. My lecturer wants me to submit the documentation of the project.I'm not sure about how to prepare my documentation of project.What to tell??????? the feature which I could add to make my documentation impressive. |
| | I'm a total nubie. I thought it would be useful to download the source for an applet and study the code. I picked a wonderful applet by Don Hatch: [URL]http://www.plunk.org/~hatch/HyperbolicApplet/?size=513[/URL]. The code in the jar file is all in .prejava files. My IDE (NetBeans) doesn't know what to do with … |
| | Hi, can someone help me modify this code to achieve the following: Add methods to your Human that return collections of arms and legs. implement these methods by iterating through the collection of limbs and checking what type of limb they are. Note that you will need to use the …  |
| | Hi, We are a group and want to make a forum using the j2ee technology, and I need your guide through the following: 1. Should we use any FrameWorks ? if yes. which one is better and simpe ? 2. If not using any Framework, then what you suggest ? … |
| | How to write recursive method that takes an array of Strings and prints them out in reverse order, one per line. I was able to do this by iteration but not by recursion since its an array of string .could any one help me ... |
| | hi,my program should plot a graph of two function and then get the intersection point and get the points on the x,y axis then i get the value of it in a function z and get the highest value of z i completed the program but there is a problem … |
| | Hi, I have some question and hope that someone can help me to solve it. When I click one button in JFrame form, then can the JFrame form hide and another JFrame form will appear? Hope can provide some sample code on how to do it? Thanks |
| | Hi all I urgently need a tool that either convert java code to c++ or make reverse engineering diagrams of java code..like uml/sequence digs..etc…or explanation of the code…. If anyone have idea of such a tool then let me know please. Regards |
| | does any1 knows how to create mobile game using java?i need help.. im clueless... im trying ti cr8 a mobile game "go" but dont know how to start... can ym me: [email]mushaz15@yahoo.com[/email]... need help asap.. |
| | I am taking a web design and development class and we have been thrown into MySQL along with java without much knowledge beforehand. Was wondering if anyone could help me with understanding how to query the database and update entries, as I am confused on how to accomplish this. I … |
 | I'm new to java (like a few weeks new), but coming from a C++ background.. This is going to sound retarded, but... can someone explain to me how I can make a BigInteger object to make it have the same value as another BigInteger object? That is they have to … |
| | Hello to Every one... First time greetings.... -I just found about this great site, I wish I'll enjoy it,, -I'm looking to share experiences with others around the world under such open community... I'll do my best to benefit others as I hope also to get solutions for problems I … |
| | can you guys help me how can I remove all those drawn rectangles if user click the mouse in the applet field? I am supposed to write a program that displays a rectangle and color it with green when user drag the mouse. But if user click the mouse anywhere … |
| | I saw someone, I think it was s.o.s, recommend the use of BigDecimal to someone else. So out of curiosity, and having heard of BigDecimal before, I looked at the Javadoc to see how large the values it could hold were and how it held them. From the doc: "Immutable, … |
| | I need help with this code. I am already a week late on this part because part 2 took to long to code. I am not getting the LeatherBlueDot class to compile. I am getting a message that in my constructor statement saying each variable has private access in class … |
| | Hi,Please i need some help in my java program,it's purpose is to enter 2 equations and it solves them graphically,the problem is that the graph has a glitch with the x and y axis,plz can someone help me so that all the equations are solved correctly.. here's my source code: …  |
| | I am designing a project in java.I am mostly done with the code. I need to know how to convert my java code into .exe file? pls reply soon. Thanks in advance. |
| | I am trying to write a program that displays a rectangle when user drag the mouse and when user release mouse, it displays the rectangle with green color. I am terribly confused here is what I am thinking to do import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.net.*; public class … |
| | hi,i started to learn java nearly 2 weeks ago so i dont know java clearly,i try to write a program about trainingzone. i must provide an interactive training zonecalculator that prompts a user for age. i write a program but it gives errors and i dont improve this,if anyone can … |
 | Ok, the code is almost done and I need help finishing up my delete function(between lines 51 to 71), I can't seem to figure out how to delete the 50 and the 20. Here is my code. BTW i'll list the output first. Thanks Sample output 10 20 30 50 … |
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