32,204 Topics
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| | I made a program that simulates the roll of a six sided dice. I had my program return a random number between 1 and 6. The weird thing is I get 4 like 6 out of 10 times each time I run the program. So is the random number genarator … |
 | I am writing a program that calculates the bill when buying eggs by the dozen. I have for the most part figured out most of the code but, I am getting an error message that is saying "variable price might not have been initialized. Here is the code please help … |
 | I have just embarked on a Java programming course and have been given a task to work out the volume of a cylinder in cubic inches with a given radius and height. and then to convert it from cubic inches to to cubic Cm's which i have done fine. My … |
| | Hi People who have this kind heart who could help me in my Java Programming Language Project.. I cannot sleep since last week coz I can't find a way how to solve my problem in Java My teacher told me to make a simple game using Java programming Application. Since …  |
| | im trying to sort through an array and i keep getting a null pointer exception when i do... can anyone see where im going wrong....thanks getreleasedate() gets the gregorian calendar date for each object in array. new CD() creates an empty array that can hold five objects public void sortByNewest() … |
| | Well I got the whole thing working.. thanks a lot. Now I've gotta strugle with the "stdin.readline()" which doesn't wanna work for some odd reason :P I imported the java.io.* i created a new BufferedReader ... and it just doesn't wanna work. Are there any other ways of getting input … |
| | Hi! How can we print out boolean???? I mean when the method returns false or true. ex: public boolean test(int a, int b) return true return false thanks peter  |
| | Hi all, i want to know [B]how jvm works,internal architecture of jvm.....all the the technical information about jvm[/B]...Because it is my seminar tropic. Please help me......It very urgent... Thanking you.... regards Rishi  |
| | I wrote web Apllication with Servlet/JSP and JDBC. I want to introduce Struts in my prev and new application. All application are database oriented, like resumebuilder, library cataloge viewer and cart application for displaying as well as shopping appliances. My main query is till now I used java core, javascript, … |
| | Hello everyone, I am trying to write a program that will list all my videos by title and also by ID# and sort titles. Also I want the user to enter a ID# and they would see what title is associated with the id #. Can anyone give me a …  |
| | :cry: I am trying to create a 2d array that will store the information i hold in the txt file (which is in this format x,y - 45 50 36 47 60 56 etc then i am supposed to calculate the distance btn x and y and store it in … |
| | Hi everyone, I am doing a simple compression program in which the application uncompresses the file to a selected folder. The thing is that the file that is being compressed already exists in that folder. What i need is someone to show me a way in whic the file is … |
| | My browser needs to access a System that is Java developed. But my IE seems not working normal. Im using Windows 2000, IE is version 6 SP1. There is a guide to set the correct settings in the browser to access the system correctly. I have set most of the …  |
| | Hi everyone, I have a problem with the fundamentals wit serversockets and sockets in java. In the constructor of the java socket as shown below Socket(InetAddress address, int port) In the above constructor what do they mean by address? In the below java constructor as shown below Socket(String host, int … |
| | I am trying to install JAVA JRE so I can run a program. But when I try downloading it it says Installer cannot proceed with the current proxy settings. I change the LAN settings as they promted me to but it asks for the address and port number which I …  |
| | Please help me with and example of Java code for project that I must write as a new student that never seen the code before. I must create a program that does Mortgage calculations the number are as follow terms 360 interest rate 5.75 loan amount 200.000 and I must … |
| | Hi! 1. My metod has 4 int parameter, and return true if least one of those parameter can be dividable with 5. otherwise return false. 2. if least two or three of those parameter can be dividable with 5. Code: class Test{ public static void main(String[]args){ NumberTest myNbr=new NumberTest(); int … |
| | Hi, I have to write a program that tests if a number entered is prime or not. I have finished all the code to display input prompts and output message Example: " Enter a number: " - " x is a prime number" - " x is not a prime … |
| | Hi, I have written a program that accepts a positive integer as input and determines whether or not the number is prime, it all works accept when a number is prime it should display " x is a prime number " and continue to prompt for user input ( loop … |
| | [FONT=Arial Narrow]undefined[/FONT] please help me to make my Java programming project. my teacher required me to make at least a very simple game using java application. Since we're still on the basic Java, however I tried to make my own, I still cannot. Please!!!! anyone can help me to make …  |
| | Hey there, I'm new to java and I need to write a string that i generated in my code to an output file. I'm currently writing the string to the standard output like so : System.out.println("K_"+Receiver+",t"+msgnum+"(R(" +Receiver+",t"+msgnum+"("+out1+")))"); All the types e.g. 'Receiver' or 'out1' are of type string. Could anyone … |
| | i unable to read a text file into my code i have the right code i think i just can not make it run with no errors |
| | HELP.. I have a frame set to the screen size of my monitor, background color is yellow. I have a panel returned by midFrame() (outerPanel) supposed to be located at the center of my frame. i used the setBounds() to place my panel in the center but it doesn't do … |
| | Hi! I can not solve this JAVA problem. I tried to write: final int a=100; int nbr=Input.readInt();// from keyboard I try to find (nbr*nbr)>a ex: nbr=11 and 11*11=121 12*12=144 10*10=100 Output must be 121, not 144 but 144 is also >100 thanks Peter |
| | Hi everyone, I have a weird problem. I have created a zip manager and unzip manager. The zip manager works alright in a sense that it can create zip files and also the contents of the zip file zipped by my own zip manager can be extracted by using winzip. … |
| | ok the error is that it doesnt recognize the package class. [code] package celsiustofahrenheit; public class CelsiusToFahrenheit { public static void main(String args []) { double celsius, fahrenheit = 0; System.out.println("\n\tEnter temperature in celsius: "); celsius = MyInput.readDouble(); fahrenheit = 1.8 * celsius + 32; system.out.println("\n\tThat is " + fahrenheit … |
| | I'm new to java and i'm taking this java class in I have to create a program that prompts the user to enter his/her high school's name, and two decimal number (ie. 5.8, 3.45). what i have is public class FirstProgram2 { public static void main (String[] args) { System.out.println("Martin … |
| | I'm trying to get a 'fish' to move randomly within an aquarium. I've got the fish drawn, but can anybody help me on getting him to move randomly? Any help would be greatly appreciated. -- Shipwreck import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.*; public class Fish { public static … |
| | import java.awt.Graphics; import java.awt.print.PageFormat; import java.awt.print.Printable; import java.awt.print.PrinterException; import java.awt.print.PrinterJob; /* * Created on 14-set-2004 * */ /** * @author Laudani * */ public class ProvaPrint implements Printable { /* (non-Javadoc) * @see java.awt.print.Printable#print(java.awt.Graphics, java.awt.print.PageFormat, int) */ public int print(Graphics arg0, PageFormat arg1, int arg2)throws PrinterException { System.out.println(arg2); if(arg2 == … |
| | hi all the purpose of this simple codes is to show a text in a text box when i click the button. Both are on in different panel and then placed in one main panel with box layout... actually, i made it a simple case... still, the prob still exists... … |
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