[java] Forum Topics

I'm working on a grading program that will require the use of a couple classes. The program contains a list of "program assignments" which there are 5, and 3 test scores. I'm stuck writing the average methods Along with the total exam scores/program scores. Any help will be appreciated! Here's …

Hi, Im getting the followin error in one project class in my application: The project was not built since its build path is incomplete. Cannot find the class file for DataControl. Fix the build path then try building this project DataControl is a class in another project in the same …

Does any one know where there is some Java code already written to handle deleteing directory trees? Maybe with some undo functions?

So I'm writing my own simplified LinkedList class. When I compile my code I receive this error Error: F:\Files\ICS\Card\LinkedList2.java:3: name clash: indexOf(E) in LinkedList2<E> and indexOf(java.lang.Object) in java.util.AbstractList<E> have the same erasure, yet neither overrides the other The code is public int indexOf (E element) { Link<E> o = new …

[CODE]package stu; class student { int age; String name; public student() { name = "Animesh"; age = 19; } public void display() { System.out.println("Student name is : " + name); System.out.println("Age is :"+age); } }[/CODE] [CODE]import stu.student; class student1 { int marks; String sub; public student1() { sub = "Mathematics"; …

Hi all, I'm new here and a little flummoxed by this problem. I am working through the process of creating a notepad type program in java to get a little more experience with the language. My save functionality is not working. This is not unexpected; the part that is really …

Hello all, I have a small helloworld program and try to run it on the command prompt. [code] public class Hello { public static void main(String[] args) { System.out.println("Hello, World!"); } } [/code] i have my file in C:\test\Hello.java C:\test>javac Hello creates a class file in c:\test\Hello.class but c:\tets>java Hello …

I am trying to make a contains method where it will search for a name using the compareTo method of the Comparable interface. Here is my problem, It will return true if found but will stay in the while loop and not end if it is not found. AND I …

at which value of responce code will be the site valid ?

So I working on a program that in a poin in the program I have to get the median and the average of the numbers in the array. I have to write a program that will read in a list of positive integers (including zero) and display some statistics regarding …

Hi everyone i was just wondering if anyone here has every created a Neural Network for predicting Sports results. i was interested in doing this however I'm not really sure where to start. if you have done something like this before could you just give me some feedback. also do …

I am not understanding how to fix these problems. I have placed bracket, removed brackets. Could someone please help break this down. most of my error is cannot find symbols, line 80 is unclosed character, 113, 121, 126, 127, 137,is class, interface or enum expected. I am suppose to modify …

Hello, I was wandering how to save the contents of a JPasswordField into a text file, i thought to use the [CODE]getPassword()[/CODE] method, but a [CODE]null[/CODE] is saved into the file instead. Would appreciate it if I could get some initial ideas. Thanks for your time, Sam

for a friend who needs help [CODE] public class Card { private static final double True = 0;//sets true public String Card;//sets card public Card(String Card2) { Card = Card2;//sets card2 } public double getDiscription() { if (Card.equals("AS"))//if the "AS" is put in it prints below { System.out.println("Ace of Spades"); …

Hello, I would like to ask if you can give me some help. I have to implement a slicing tree that represent a slicing floorplan(slicing floorplan divides a rectangle with horizontal and vertical cuts, and can be represented by a binary tree, called slicing tree. Its internal nodes are the …

Hi, Id like to generate a nine-digit combinations of 52 characters of alphabet (a..z and A..Z). My thought is: [LIST=1] [*]Generate nine-digit combinations of numbers from 0 to 51 [*]Use these combinations as indexes of [CODE]char[] alp={'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};[/CODE] [/LIST] Iam sure its very easy.. Im learning Java for one month (once …

I downloaded the JDK and have started making simple applications (ex: Hello World). Is it possible to put this onto a website, and if so how do I go about doing that?

Im trying to run an RMI app from eclipse but im getting an error saying it has already been started by another application. I ran an application yesterday from the command line but i closed all windows down when finished..is there a special command to shut down the registry on …

[CODE]System.out.println("what is your name? "); String name = kb.nextLine(); for(int i = 0; i < member2.size(); i++){ if(member2.get(i).equals(name)){ System.out.println(name + " is a member. "); break; } else{ System.out.println(name +" is not a member. "); break; } [/CODE] i did a system.out.println on the member2 arraylist (String arraylist) and it …

hey !!!!!!! m not able to view images in my tomcat server while doing coding in net beans !!!!!!!! whats the proper path to be written to view images I am using it this way <img src="D:/project/web/bukcovers2.jpg">

Hi, I am having a challenge with this.. I just read a book on Java Applet and there is something that is confusing to me. i need help on that.. There are two programs here... import java.awt.Graphics; import java.swing.JApplet; public class TryMe extends JApplet { public void paint (Graphics g) …

[code]import java.util.*; import java.util.Random; import java.lang.*; public class testing1 { public static void main(String[] args) { String pass = new String("ENTER THE HAMLET HAM TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND TO SUFFER THE SLINGS AND ARROWS OF OUTRAGEOUS FORTUNE OR …

The following code piece must display correct message in GUI according conditional statement. When tested using void main, I get the result as expected. However, when I test using applet the result is OK for the first if(....) statement but freezes on the second. - if condition OK then compute …

how do I create a 2d array, where the user choos the size of the array? or have to make this: 1 2 3 4 5 1 O O O O O 2 O O O O O 3 O O O O O 4 O O O O O …

I have a login page, which directs to Verification.jsp Login.jsp [CODE] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <form action="Verification.jsp" method="POST"> <fieldset> <a rel="nofollow">FreeLancer? Sign up!</a> <br/> <input type="radio" name="r1" value="Admin" checked="checked"/>Admin<br/> <input type="radio" name="r1" value="Editors"/>Editor<br/> <input type="radio" name="r1" value="Staff"/>Journalist<br> <input type="radio" name="r1" value="Staff"/>Reporter<br/> <input type="radio" name="r1" value="Freelancers"/>Freelancer<br/> …

I want to store data that user inputs [form based in form of xml] into a postgres database, so I would like to know is it wise to develop a web service or how do I transfer data. I am completely clueless how to head on with the problem

i'm trying to populate a JList, and i saw that this is how it supose to work [code] JTable tabel = new JTable(); tabel = new JTable(row, cols); while (it.hasNext() && it1.hasNext() && it2.hasNext() && it3.hasNext() && it4.hasNext()) { Object ob[][] = { { it.next(), it1.next(), it2.next(), it3.next(), it4.next() }} …

Hello everybody, I am new to java programming. Actually I have designed a form in which I have 5 fields & a submit and add button. My requirement is that I need to save 100 data in database, but at a time I can enter only 1 set of data. …

Is there any way to play subtitles in JMF. Any source which I can read to proceed ?

So I've printed the first node in the linkedset. What I'm trying to do now is to figure out how to print the entire linkedSet1, in this case, since only one node has been added, it should only print the first node, but once more nodes are added it will …