32,199 Topics
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| | Hi guys well what I want to do is play a video clip when my program starts. My menu has been set up to how I want it to look. I've researched how to do this but I cannot seem to find anything that I want. All I find is … |
| | So I'm doing this simple draw program where I let the user click a button, i.e. Rectangle, and then click any desired place on the JFrame to draw it. Now, I want the user to first click on the JButton, then click anywhere on the JFrame (so that I get …  |
 | Hey there guys, this is my first post here. Really pretty website I must say. I guess you'd expect a programming website to be well built. Haha. But anyways, I've been having some problems recently with a JFrame. I'm a beginner, but I usually do pretty well with resolving errors. … |
| | I have problems with choosing a line and to find a number or times specifif word repeats in that line? Can you help me with that? [CODE]import java.awt.*; import javax.swing.*; import java.awt.event.*; public class DefectInspector { private JFrame frame = new JFrame(); private JPanel p1,p2,p3,p4; private JMenuBar jmb; private JMenu …  |
| | hello, i have written the below piece of code for calculating the power function, but when i run the program, it shows the wrong result and i verified it by calculating manually. so please help me to get the correct result. [CODE] public class powerFunction { public static void main(String … |
 | Hello y'all. I am in the midst of an exciting project, and I've hit a little bump. I'm trying to do a 'deep copy' of a TreeMap<String, State> [B]so that I can work with one (delete, insert, etc...) and preserve the other for later.[/B] Instead of having to code up …  |
| | How to implement a DHT in Java? Basically I need to know how to implement a lookup algorithm for DHT. The idea is to grasp java RMI and lookup algorithm of DHT. |
| | Ok you guys are my last hope, i've tried searching what i need and i cant find it. i really tried searching.... but i just don't know exactly what i'm really searching for... i have to do the following project in c# (wrong post haha) but if you could help … |
| | Having some difficulties getting this assignment to work. What, I'm having trouble completing is creating an conditional statement that calculates interest for the amount of years entered by the user at the interest rate they enter and displays it in a message box. This is my code so far: [CODE]import … |
 | Hey I have this code [code] FileUtils.forceDelete(new File(nombreprograma+".zip"); FileUtils.forceDelete(new File(nombreprograma+"/"+nombrebmp+".bmp")); [/code] Deleting the zip inside of the root works perfect but for some reason the BMP inside of a folder, doesnt. The error it gives is that it cannot delete the file, nothing else. Any tips? |
| | Hi, I am currently doing a JDBC project where I am manipulating data in a Access DB on a table named empDetail and one of my tasks has got me stumped, considering I only started learning about JDBC yesterday. I hope somebody can give me a bit of direction as … |
| | Hi everybody Help me please to figure out what's wrong with my code When I try to compile it it gives me an error ClassNotFoundException I have never had such an error befoure, so I don't know what to do.... [CODE]import java.util.LinkedList; import java.util.List; import java.util.ListIterator; public class Example { …  |
| | Hello. My code describes Color classes: [CODE] abstract class Color{ private final int H=45; private int V; private int S; Color(int V,int S){ this.V=V; this.S=S; } public int getV(){ return V; } public int getS(){ return S; } public void setV(int V){ this.V=V; } abstract void print(); } class Black … |
| | Hi, I am a java learner, i have installed netbeans 7.0 and i have also installed the glassfish server, but there is no database options available , please provide me help how to install the java database in netbeans Regards, Bharathi |
| | import java.util.Scanner; public class sfera { public static void main(String[] args) { //Langkah 1:Baca input dari pengguna System.out.print("Masukkan nilai jejari: "); Scanner input = new Scanner(System.in); final double PI = 3.14159; double jejari = input.nextDouble(); double luas; double isipadu; //Langkah 2: kira luas luas = 4 * PI * jejari …  |
| | Hello, When I run the following program, the applet window displays nothing. I will be grateful for any help. [CODE] import javax.swing.*; import java.awt.*; public class BoxPanel extends JPanel { private JTextField label1, label2; public BoxPanel() { setLayout(new BoxLayout(this, BoxLayout.X_AXIS)); label1 = new JTextField(20); label2 = new JTextField(20); add(label1); add(label2); … |
| | Hey I have an assignment to get a number from the user and print it as a string with commas in the correct space. For example if the number is 13904 it should read 13,904 or 1005 should read 1,005. I have to do this recursively. Working on my pseudo-code … |
 | [ATTACH=RIGHT]16645[/ATTACH]Oracle announced Thursday evening (August 12) that they would be filing a lawsuit against Google, claiming that their Android phone software infringes upon patents and copyrights of their Java software, which they acquired when they purchased Sun Microsystems in January for $7.4 billion. "In developing Android, Google knowingly, directly and … |
| | Evening all, My assignment is as follows: Consider a program that administers multiple-choice quizzes. The student needs to provide a response such as A or D. Your job will be to check for input errors in the student response string. Check that the string has length 1, and that it … |
 | My ten year old has learnt quite a lot of java and wants a few BEGINNER projects. Any ideas?  |
| | I want to add a progressBar (just to show that something is happening) when the database rows are fed into a table. First I tried to create a frame, where I added progressBar. I called frame.visible in the while loop which populates the table with database datas. But the frame … |
| | I have a simple program with a potential complicated output (see below). I am asked to make a simple for loop that displays results in GUI. Can I do this without with showmessagedialog instead of doing a JTextbox/label ect? I need this: sample gui output: After year 1 $11000 After … |
| | i want to use use javamail Api and i am not able to understand which server i use or is there is any other api available which is better then javamail Api.please suggest me |
| | I have the following code which allows a user to play Rock, Paper, Scissors with the computer. The code allows for 10 rounds and counts the number of wins and ties. I need to allow for user misspelling by allowing the input to be accepted if the user types the … |
| | ASALAM-O-ALIKUM i want to read a mp3 file in java and shows the data on console output. i can read header data but i dont need it. i want a ACCURATE DATA FROM WHICH I CAN EXTRACT SUCH A FEATURE which tells the mood of song i.e sad, happy, romantic … |
| | Hello, everybody, I am doing my Java homework and we used this line in class with no problems at, I have the code from the program we used in class and it works on my computer no problem. However, when I put it into my homework's code, it gives me … |
| | Hi folks. I'm new here so appologies if I'm not posting in the correct place. Here's my issue. I want to paint independent graphics on the same JPanel. I thought that I could create a method that paints my image(s) then call this in the constructor, but not sure what … |
| | Hi to everyone l have this assignment to do: Synchronize access to the instance variable, accBalance. Because accBalance is a double and not an object, it cannot be used as the monitor. Use synchronized methods or synchronized blocks of code, as appropriate. Simultaniously test two threads. Because the threads can … |
 | I'm trying to run a simple servlet that counts the number of times a user visits the page using cookies but I'm getting the following error. I thought that NullPointerException was because there were no cookies at all in the browser. But after checking I found a couple of cookies … |
| | I want to update a record of a gym member when his/her weight change. But unfortunately my program can't find the given member. Here is my code: [CODE] public static void updateWeight() { Scanner in = new Scanner(System.in); // Creation of a new Scanner object String tempName = ""; // … |
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