36,051 Topics
 | |
| | Good day sir, can you help me where can i download JDK in java. i have already download JCREATOR pro but i can't download the JDK. i already ssearch JDK but when i download it, it is always interrupted. and i don't know what kind of JDK i download.. can … |
| | Hello, I am confused between the differences between a key logger and key listener in Java....i looked online but I couldn't find a straight-up answer. Thanks in advance! |
| | I'm writing a program to ask the user for 6 points for a triangle and then calculate the length of the 3 sides, the perimeter, and the area. Then the tester will have to display the properties of the triangle, length of sides, the area, the perimeter, and if the …  |
| | can anyone tell me how to edit *.avi/*.mp4/*.flv (not images)[B]EXIF/IPTC[/B] information using java??  |
| | Hey Guys, I am new here but looking to come here often and obtain some leet skills in java. I am new to programming but do enjoy it. I was just assigned some homework that has me stumped. I would go talk to someone at my school but they are … |
| | Im new to java and trying to get buttons to work. My next button works as intended however the first and last do not and the previous one only takes me back one space if i'm on the second item. I need the prev button to rotate backwards through the … |
| | Hey guys I keep getting the "no return statement error in two places, I have commented them for you [CODE] /** * A WordsCompare object stores Strings. It is used to determine if the first word * should be placed before or after the second word in the dictionary */ …  |
| | I want to add a Lable in a JComponent when a button will be clicked. I have added a actionlistner on that button. I've added this.add(label) in the JComponent. but the location, which is set by label.setLocation(...) is not maintained in the JComponent. If i use FlowLayout() in the JComponent … |
| | Hey there. I'm planning to develop a software for my father's business. The software is very simple, it has two tables. 1. Stock 2. Sale Whenever stock arrives, the quantity and content will be added to Stock table.. Structure is something like 1. Stock Table | Brand | Quantity | … |
| | Hi, I wish to display the homepage of 3 websites (e.g. [url]www.msn.com[/url], [url]www.google.com[/url], [url]www.apple.com[/url]) on screen. What should i use? Is there a tutorial somewhere? |
| | I have a problem with getting an input from class A to class B. I already created a method which gets the value but when I call it in class b it returns empty. These are my codes: [B]CLASS A[/B] [CODE] public class log extends javax.swing.JFrame { public String name; … |
 | [CODE]import java.util.Scanner; public class Bakery { private static String flavors; private static String weight; private static int quantity; public Bakery(){ this("Chocolate Moist", "1(KG)", 1); } public Bakery(String flavors, String weight, int quantity) { this.flavors = flavors; this.weight = weight; this.quantity = quantity; } public void setFlavors(String flavors){ this.flavors = flavors; … |
| | [CODE]import java.util.Scanner; public class Course { private String courseTitle; private double feesPerStudent; private int noOfStudents; private String[] studentName = new String[100]; private int courseCount; public Course(String courseTitle, double feesPerStudent) { this.courseTitle = courseTitle; this.feesPerStudent = feesPerStudent; } public void setCourseTitle(String courseTitle){ this.courseTitle = courseTitle; } public String getCourseTitle(){ return courseTitle; … |
| | Hello All, Can everyone help me to solve this problem ? Im doing an assignment about downloading a file and write it to a new file. My problem is the file that I was trying to download is very large, so everytime I compile my Download class and the main … |
| | is that any good ideas to fixed the aligment of the output instead of using \t, due to some of the output words have more or less. :) |
| | Hello, Working on my final project for a Java Class and have become stumped on the final leg of the code. We are supposed to create a program to add a record, remove a record, display a record, and list all records. The records must be written to a file. … |
| | I had quiz today in my IB CS course, and I had a question I could not understand, I will try to stated as closed as possible. "There is an array of integers which holds an unknown amount of integers but it's not bigger than a 100. if a = … |
| | Alright I think I'm getting closer but now my program skips by my System.in feature so the radius is never enter and just runs to completion any help would be greatly appreciated [CODE]import java.util.Scanner; public class Square { static class Circle { float radius; public double CircleInfo() { Scanner in; … |
| | hi evry one ,im not used to java and i hate its bad compiler can any one tell me whay it give me this running time error:array index out of bound! this is the code were it have the erorr: [CODE] public class RotatingBieChart extends JApplet { int diamter,radius; int … |
| | How to find the slope of a point on a parabola with loops? |
| | Hi again guys. I currently have a class named [B]ElementSet[/B] which houses an array of objects as well as an array of boolean values which pertain to two function tasked with flagging or unflagging an individual object. I also have an abstract class, [B]Element[/B], and two inheriting classes named [B]Subscriber[/B] … |
| | [CODE]public class Fan { final int SLOW = 1; final int MEDIUM = 2; final int FAST = 3; private int speed; private boolean on; private double radius; private String color; public Fan(){ speed = SLOW; on = false; radius = 5; color = "Blue"; } public Fan(int speed, boolean … |
| | I want to add a selectable image to a PadDraw() of a JFrame container. So how can I do it? I've got a idea that it can be done by JLabel, but I think it's not selectable. So, how can I add that? |
| | The book I'm using says it should look something like this [CODE] import java.io.*; public class main { public static void main(String[] argv) { String fil = "CormeOn.bat"; FileWriter fw = null; try { fw = new FileWriter(fil); } catch(FileNotFoundException fnf) { System.out.println("Yea...."+fnf); } catch (IOException e) { e.printStackTrace(); } … |
| | I am stuck in this code. I have to print results every 30 tosses for 500 total tosses. I made the 30 but in the loops. And also percentages are showing as 0 Help or hints would be much appreciated. [CODE]import java.util.Random;// program uses class Random public class CoinTossing { … |
| | how can i check a given string to form a palindrome or not for(i=0;i<str.length();i++) { if(str.charAt(i)==str1.charAt(i) } } |
| | I would like to know when NullPointerException comes in java. any help would be appreciated. |
| | In high school I learned Pascal and C++. Everything from hello world to search trees, to graphical battleship with AI. Now I'm a freshman in college and in my CS1 class we are using Java, but after 2 months we are just now on arrays. Basically I was just hoping … |
| | Hello, I have a weird problem while running my project. I use netbeans and here's my code and the problem is explained after the code. [CODE]/* * NetworkingView.java */ package networking; import org.jdesktop.application.Action; import org.jdesktop.application.ResourceMap; import org.jdesktop.application.SingleFrameApplication; import org.jdesktop.application.FrameView; import org.jdesktop.application.TaskMonitor; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.Timer; import javax.swing.Icon; import … |
| | lets say i have 8 deck of cards how to put all of that inside a array do i have to make a multidimensional array for each deck??? |
| | Hi, I would like to know the code used for java to clear the screen as we do in c# using [COLOR="red"]Console.clear();[/COLOR] is it possible in Java aswell? If yes, what code should i use?  |
| | hi i started coding battle ship when i was done i noticed that the user and computer always misses, even if they hit, i dont know what i did wrong [CODE]import java.util.Scanner; public class Battleship { public final static String USER = "user"; public final static String COMPUTER ="computer"; public … |
 | I got this error, when the bullet collides with the enemy. [CODE] 341, 458 null 341, 458 null 341, 458 null 341, 456 java.awt.Rectangle[x=340,y=75,width=50,height=50] 341, 456 java.awt.Rectangle[x=325,y=45,width=50,height=50] 341, 456 java.awt.Rectangle[x=479,y=15,width=50,height=50] 341, 454 java.awt.Rectangle[x=340,y=76,width=50,height=50] <CUT THIS OUT. ABOUT 1000 LINES LIKE THE ONES ABOVE> 305, 352 java.awt.Rectangle[x=222,y=36,width=50,height=50] 305, 352 java.awt.Rectangle[x=299,y=6,width=50,height=50] 341, … |
| | I have the following code to generate an array of random numbers. How can I get it to print the array like [5,89,76,34,2] instead of printing down. I don't think it is actually printing the array just the numbers. [code] import java.util.Random; public class RandomIntArray { private int[] numbers; public … |
| | calculate value of PI from the infinite series Ï€ = 4-4/3+4/5-4/7+4/9-4/11 +..... write a class with two data members aproxivalue(double value ) and percision ( integer value ) where precion is the number of terms of the series used to compute the value of approxivalue : 1- default constructor permits … |
| | Hey, Is there a way to get the keycode from a char? I tried using KeyEvent.getKeyCode() but the KeyEvent class didn't have a constructor so it was freaking out. I've been searching for 2+ hours already and nothing. My goal is to have a char, convert it to keycode, and … |
| | Hello everyone, I need some help understanding some concepts and possibly with my logic on this problem. We are supposed to create a program that asks users for their name, id, and grade average. The set is supposed to be where the exception is thrown. When the user enters their … |
| | I'm using ArrayList. But the problem is that the indexOf function is not working in a for loop. It's showing 0 for all the elements or objects. Code goes like that for a FOR loop : [CODE]for(or_data or : counts.or_gates) { if (or.isHit(x, y)) { mutual=counts.or_gates.indexOf(or); set_move_cursor(); or.addX(dx); or.addY(dy); System.out.println("Got … |
| | Here is the assignment criteria : Implement exception handling to validate user input as was described in class. You need to at least catch type mismatch exception. No late or by emailed homework will be accepted. We are to have a student enter their name, id and grade. The name … |
 | Hello I was working through a Netbeans tutorial : [URL="http://java.sun.com/developer/technicalArticles/java_warehouse/single_jar/"]http://java.sun.com/developer/technicalArticles/java_warehouse/single_jar/[/URL] I am having a problem understanding adding my properties and xml dependencies contained in an xml dir in my project (Please find screen print of dir) I jar my app and it can not find these files or dir. java … |
| | I am building a Circuit Editor using Java. I'm now at very first stage. Now I'm building a simple editor like Paint. I've implemented a drawing-pad where you can draw straight line and continue the line until you click an right click, by a "WIRE" Button click in the frame. … |
| | I'm having to design a program in java to get the radius from the user than print back the diameter, circumference and area using that radius I'm not sure where I'm going wrong in this [CODE] import java.util.Scanner; public class Circle { private static void circleInfo() { float radius; public … |
| | Does anyone now of a regular expression that will omit words in a string while replacing others? |
| | I am doing a project like a car gallery system and need to ask for help... Suppose I want to create a class call [COLOR="Red"]"Brand"[/COLOR], it is basically just to store the brand name, a brief description, and also need to give it a picture. Says: Toyota, it is a … |
| | I'm running to compiler error while I'm trying to use Enum to create a program that display a deck of cards. The compiler mistake is "Cannot find symbol", but I did call the constructor and use method call to call the method in card class. It still give me compiler …  |
| | Hey guys, I'm bit of a noob so please bear with me. I'm trying to open a lot of urls in internet explorer at once. About 40 urls. I have an array of my urls and I'm using the following code: [CODE] for (int i = 0; i < urls.length; … |
| | can anyone tell me how to [B][U]setOwner[/U][/B] as well as the [B][U]fileKey[/U][/B] for the particular file........ i've retrieved the metadata information but can't able to set values..... [CODE="java"] import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.attribute.AclFileAttributeView; import java.nio.file.attribute.BasicFileAttributes; import java.nio.file.attribute.UserPrincipal; /** * * @author user */ public class … |
| | Hey guys. I am getting a fair amount of errors when trying to create this menu. I am not sure whether or not I am going about it correctly. Without further adieu: [CODE]package assignment.pkg2; import java.util.Scanner; public class Assignment2 { public static final int MAX_NUM = 10; public static void … |
| | I have an assignment to reverse the sequence of coins in a purse. I cannot use any methods from the Collections or Arrays Class. I have the following code but have no idea what to do from here to get the purse contents to reverse. [code] import java.util.ArrayList; public class … |
| | I have an assignment to create a class Purse and print the coins in the purse, reverse the sequence of the coins, transfer the contents of one purse to another, and compare to see if two purses have the same contents. I have the following code but the transfer is … |
The End.