32,204 Topics
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 | i need help drawing an image in an applet for some reason it doesn't show up but there are no errors [CODE]package Game; import java.applet.*; import java.awt.event.*; import java.awt.*; import javax.swing.ImageIcon; public class AppletOne extends Applet implements Runnable, KeyListener{ int x_pos = 10; int y_pos = 100; int x_speed = … |
| | i want to make a 3D game in Java but the tutorials i was watching aren't being made and i don't know which 3D to use because j3d looks pretty bad... and i'm not new to Java just new to 3D.  |
| | Okay here's what I have... but my test cases when running the program are not allowing me to input negative, decimal, or exponents as temperatures. I know it something small but it's alluding me, I figured if I had F and C as double it would work. Any ideas? Another … |
| | hello guys is the following, I have four players on the king, and I need to check if they are bluffing, because in the first round have to assist to the suit, so, I want a method that is used by four players the question is now, so I have … |
| | import java.io.*; public class Appliance { public static void main(String args[]) { try { File file=new File("Name.txt"); FileReader f=new FileReader(file); int ch; while((ch=f.read()) { System.out.print((char)ch); } } catch(FileNotFoundException fnfe) { System.out.println("Exception: "+fnfe.toString()); } catch(IOException ioe) { System.out.println("Exception: "+ioe.toString()); } } } |
| | Hi, I've got a job interview coming up and was wondering if people would be so kind to help me with some revision for the interview. It's it a programming role(surprisingly) so would be greatful if people would post the questions they have been asked or ask in job interviews. …  |
| | Hello, I am a student taking APCS and I am getting very frustrated with this program. Usually I can get everything figured out but I can't figure this out. It compiles but when I run it, it seems to give the wrong number for the number of bombs in adjacent … |
| | Hello World. Thanks for any help in advance. I am in a basic java class. One of our first assignments is to develop this currency calculator. I have completed the code and it works fine. My only concern is that i could loose points if I have too much code … |
| | I need help please, I want to write a program that requests and reads two integers on one line representing a range, the program should output the sun of all even numbers in the range. if anyone can help please do, thank you. |
| | Im making an applet that moves a red ball using the WASD keys but it doesnt work for some reason help? [CODE]package Game; import java.applet.*; import java.awt.event.*; import java.awt.*; public class AppletOne extends Applet implements Runnable, KeyListener{ int x_pos = 10; int y_pos = 100; int x_speed = 3; int … |
| | Hi. It says that the operator and return statement don't work. Can someone please explain what is wrong, and why it's wrong? I don't get it. [CODE] package hello; private class Person { private string firstName, lastName; private Date birthDate; public Person(String fN, String lN, int month, int day, int … |
| | i am currently using Mircosoft Windows XP (32-bit) Version 5.1.2600 Service Pack 3 Intel(R) Pentium(R) 4 CPU 2.53GHz (2532 MHz), 1280 MB RAM (NVIDIA GeForce FX 5500) [U]My Problem[/U] when i run java program the CPU USAGE will run to 100% . i tried to reinstall but doesn't work. i … |
| | [CODE]class MOrders { int nooforders; // Data members of the class public int getorder() { nooforders = 500; } public void displayorders() { System.out.println("The number of orders to be delivered: "+ nooforders); } public static void main(String args[]) { MOrders obj = new MOrders (); obj.getorder(); obj.displayorders(); }[/CODE] getting a … |
| | I'm trying to make an array-based queue that inserts and removes the elements... The default array is {0,0,0,9,10}. after the 0's are filled up it should say that its Full and will return to the loop. I'm having trouble making 3 particular methods which is dequeue, isEmpty, and isFull.. [CODE]class … |
| | i googled on how to create a class dynamicly and i found that code [code] Date today = new Date(); String todayMillis = Long.toString(today.getTime()); String todayClass = "z_" + todayMillis; String todaySource = todayClass + ".java"; public static void main (String args[]){ MakeTodayClass mtc = new MakeTodayClass(); mtc.createIt(); if (mtc.compileIt()) …  |
| | What is the best way to assign values to variables of various data types from reading a file (while importing as few things as possible and making use of the simplest code)? I need to write a program which can assign values from a .dat file, if that's relevant. If … |
| | hi, i have problems in accessing file through ftp from other computer.. i have a code, but it works fine in one computer... but i need to access a file stored in another computer connected through LAN. [CODE=JAVA] try { URL url = new URL("ftp://PROJECT:123456@192.168.1.117:21/images/1.jpg;type=i"); URLConnection con = url.openConnection(); BufferedInputStream … |
| | Hi guys, I am having A LOT of trouble with this problem. If someone can help me out that would be so appreaciated. ATTACHED- below is my problem in my pdf file I email'd my teacher and this was his response. " you need to implement the three classes that …  |
| | Hi. I'm making an interface and a class that correlates with the client code below. Everytime I try to compile the client code, I get the following errors: [quote] Bird.java:15: = expected private Color col; ^ Bird.java:16: = expected private Point pos; [/quote] As well as a few others. For … |
| | I am working on a application for figuring how much of each kind of coin One should get back when they give say 99 cents as the amount of change. I have a way to do it which involves simple integer division and subtraction but i was wondering if anyone … |
| | Hi all, I am writing a plug-in for imageJ on java. I have an image to edit, and the image is an 8-bit grayscale image. I need to make the white pixels (255) in the image to red pixels. Meaning, I have to convert the picture to a 24-bit RGB. … |
| | So I am working on a java project for a college asssignment (im a student ...) and dont know what I have done... but my sub menu (when create, delete find or update is clicked) wont display. what should happen is create is clicked and the sub menu displays with … |
| | I have to write a simple program that declares three arrayLists referenced by the objects named priceList, quantityList, and amountList. Each arrayList should be declared in main() and should be capable of holding a minimum of 10 double-precision numbers. The numbers that should be stored in price are 10.62, 14.89, … |
| | Hi I'm in some serious need of help with a homework assignment. I have to write a program that takes a three word phrase from user input (through JOptionPane) and my code has to convert it to uppercase and then just take the first letter of the three words. here … |
| | Right now I have three classes from following a tutorial I found online. It draws a red square and a blue square to the screen and lets the user control the red square. The issue I am having is getting it so that when they intersect from the bottom of … |
| | I'm required to construct a three-dimensional array (a "universe"), but unlike traditional array navigation where you go to the end of the column, row, etc., increment and start at the beginning, I am required to move in reverse (like actually navigating a cube). The precise instructions: - Move along a … |
| | I'm writing an inventory program for my uncle's warehouse, which has never been counted in 20 years. (yea it's taking me a week so far and still counting parts) I want the program to be serverless and just run on his laptop (which I'm still fixing also). I thought of … |
| | Hey guys, im doing a rock paper scissors program for h/w i got it done but im getting an error and i cant figure out whats wrong. [code] public static void main(String[] args) { int pcpick; int userpick; String userChoice = JOptionPane.showInputDialog("1 Rock, 2 Paper, 3 Scissors"); int choice = … |
| | Hi all, I cannot seem to grasp the use of wrapper classes, or rather how to use them. I am in the middle of practicing for an exam tommorrow but I am a little stumped with the following task: [I]Create an overloaded setValue method that recieves a String parameter. This … |
| | what's thew benefits of dynamic loading in java? and How can I load a classes befopre run the program? |
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