32,204 Topics
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| | currently my program only reads in the one first name and last name with 5 grades and computes the average from the first line of my input file. eg. Albert Lake 54 23 54 32 12 average test score 35 im trying to edit this code so that the file … |
| | I am writing a program that has a membership class. Each Membership object contains details of a person's name, and the month and year in which they joined the club. All membership details are filled out when a Membership object is created. Then there is a club class that has …  |
| | I have created a GUI Java menu using a pull down menu in which I want to have the date and time show up. I am currently getting null for my time value and I think it is because I am not refreshing this each time I calculate my time … |
| | I needs to create DSN on ODBC thru java ...[i'm using oracle 8i] So please help me out a perfect solution... Regards GR  |
| | Hi. I was on my laptop and I have had Trend Micro's program about a month now. Everything has been fine. I never took the Norton Anti off though. So all the sudden Trend Micro is popping up alerts like mad that a virus called JAVA OPENSTR.A is appearing in …  |
| | hi ppl, I was wondering why my JDK 1.4 gives error for not having any such method for dispose(); if i have button b1 on my applet it shud quit the applet when i press the button b1........but the error is shown......what would b possible solution....? my function : public … |
| | I have a question. Below is my driver, I've already written a class. The object of the program is to report a winner and loser based on a coin flip. Heads wins. I already have if (coin1.toString()==coin2.toString()) to take care of a tie. Hoiw do I report a winner for … |
| | Hi, i'm working on an application cosisting of 7 individual jFrame screens. I was wondering, is it possible to code a button to go back to a previous screen, without removing any data a user has entered - i.e without reloading a new version of that screen? I other words, … |
| | Hi ., I have XP, at times I look at internet options & WONDER what SHOULD/SHOULD NOT Be checked to view pages properly, can anyone expand on that for me? Also there are times when I go to the SECOND Page of something & it might not display THE PAGE …  |
| | Hi, I'm developing a GUI with several forms, one of which contains a jLabel that displays a JPEG image of a graph as it's icon. How do I go about plotting a simple 2d curve on that image from a set of data? I know of drawLine etc, but how … |
| | I understand I can write a statement like: if==12 or if <12 but how do you write an if statement for something like, A = 90-100 B = 80-89 How do you write the if statement for that? My java book doesnt tell you how to write an if statement … |
| | I want to draw a surface in Java3D and I need to set bounds (using BoundingBox, BoundingSphere, BoundinLeaf or something else) because I'm working with infinite surface (in some cases I devide with number that is very close to 0). Computer automaticly sets bounds, but I need something else (for … |
| | I declared mNodes as a String Array and try to assign a value to it with sTemp which is a String as well...but there's an error occurred as: "array required, but java.lang.String found". I don't understand why. I need some suggestion please. Thank you. String sTemp; String mNodes[][] = new … |
| | I had all of this program finished except for the plotting like a week ago...Ever since then, I've been trying to figure out how to plot the stupid polynomials..I thought I had it, but the program seems to go crazy whenever it's suppose to repaint..It's like repainting components on top … |
| | Hi everyone, I need to serialize the java PageFormat and PrinterJob class to the disk as objects but the thing is that none of the java classes implements serializable. I have tried implementing serializable but it does not seem to work. I know it is weird to want to serialize … |
| | Can anyone tell me how to get rid of console window? I'm writing a gui program for an assignment... Spoiled by VB... I use the console for troubleshooting while testing or writing code, but would like to make it invisible or close it while sharing with the class. (We run …  |
| | I am new to programming and have a project due and am at a total loss. I've been sitting here reading the book for two hours and can not figure my problem out. Here is my project: You're helping Danny Ocean with his plot to rob a casino or two … |
| | Hi everyone, I have a question about doing something. I have a jtextpane that you can type text and all but i need to create something like microsoft's word 2000 in where i can view the entire print layout of the jtextpane as a print layout but also be able … |
| | Hello everyone, I am wondering where does the properties retrieved from System.getProperties defined, in some system level environment variables, some files or some other repositories. I am also wondering if I retrieved a specific property from System.getProperties, could I find out where it is defined (system level environment variable, some … |
| | I have this problem with graphics, actually I know it's with my compiler... If I try to set the background of a button or something I get erros that's not even in my code.. I have this: [Code] btnCalc.setBackground(Color.blue); [/Code] and I get theses errors [Code] //g is already defined … |
| | I have a GUI that displays a graph and I want to have some help with a code that allows you to click a point and then another point and then it draws a line. I need some help with this because I don't know were to start. ;) |
| | hey guys, I have problem in printing from java i have used PrinterJob in awt but it's going mad sometimes . it's going to it's print method two times some times doesn't print anything the code is ========================================================= [code] import java.awt.print.Printable; import java.awt.print.Book; import java.awt.Graphics; import java.awt.print.PageFormat; import java.awt.print.PrinterJob; import … |
| | code is below int average(){ //method in class int total = 0; int NOS=5; System.out.println(""); for(int i=0;i<10;i++){ if(ID ==" "){ NOS = i; break; } total += mark;// total is the problem, tried printing it // while thefor loop was running and at the end // and its says "0" … |
 | Is there anyway of actually changing the length of a slider. I have a some sliders in a grid layout and im wondering wether the grid layout will stop the sliders from expanding. |
| | I have two erros which I have tried everything to fix them C:\Documents and Settings\java:14: array required, but java.lang.String found ID[count] = ID; ^ C:\Documents and Settings\java:15: array required, but int found mark[count] = mark; heres the code class Module { String[] ID = new String[10]; int[] score = new … |
| | Hi, I am learning Java and I have decided that I should create my first project. I have the application code for a Tax calculator and I would like to add a GUI to it but I am struggling to work out how to enable the text field box to … |
| | Hi all, does anyone know of a good compiler I can download for java? It would be nice if it was an IDE but it does not have to be. I currently have the j2sdk-1_4 compiler [url]http://java.sun.com/j2se/1.4.1/download.html[/url] and it does not seem to work that well. Also I know that … |
| | This class is suppose to create a JPanel with a bufferedimage to draw on..I instanstiate this class from the main driver class, and it shows up fine, but I can't draw anything on the image, or even set the background color of the jpanel. Here is the class, see if … |
| | Hi, I have set-up a while loop to iterate an amount specified by the user. However, is it possible to compare two numbers entered by a user inside the loop and then have the larger number replace the smaller? I am having trouble because I have the first result being … |
| | Hi I need help with devising a method that will calculate the frequency of elements in a chain data structure. Here's an example of what the method is supposed to do. If x = [3,6, 5, 9, 4, 5, 3, 5, 5, 1, 6, 10, 3, 3, 1, 7, 5, … |
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