32,199 Topics
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 | I was watching the java game tutorials by thenewboston on youtube but he stopped making them. Anyone know of any good tutorials for making java 2d or 3d games? |
 | Im aware of the different data types in java but say if one wanted to have two different types of data in a single array; integer and string, would this be possible? Im aware that java can have an array of each type but I stumbled upon using this and … |
| | Hi all, I have to declare an array of LibraryBook objects and sort them either by title, author or page count, as the user requests. I've got the basics down but I'm missing something. [CODE]public class LibraryBookSort { public static void main(String[] args) { LibraryBook[] myBook = new LibraryBook[5]; myBook[0] … |
| | implement a class Employee. an employee has a name (a string) and a salary (a double). provide a constructor with two parameters. public Employee (String employeeName, double currentSalary) methods: public String getName() public double getSalary() public void raiseSalary(double byPercent) this is what i have so far: [ICODE]public class Employee { … |
 | I have an average knowledge in the whole programming thing but I would really like to excel to this field. I would like to ask our IT professionals and programmers if what books do you recommend me to refer to while learning Books for *Java *advance css,web page *Visual basic …  |
| | Hi All, I am a newbie at java and need some help. I have a JFrame setup where basically I want to show two pictures. I have everything setup however at sleep, timers ect dont currently work and I dont know why. The snipplet of code below should show imagePanel1 … |
| | Ok, so I have to write a program for school that will read data from a text file, split the data (comma delimited) into the correct type, pass that information on to a class, store the class object into an array. This is what I have so far: [CODE]import java.io.*; … |
| | Hello All Am having some challenges getting a value in a variable from another class; the code that computes the variable happens to be in a timertask method however if i move that same line of code to the constructor, the second class is able to fetch the value. When … |
| | i have been strugling to identify my error but i have failed to solve the problem my code errors is incompatible types in line 11. [CODE]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); … |
| | when i write the following code the results tell me that no mainmethods, applets or MIDlets found in file: [CODE]import java.io.*; public class Appliance { NIIT Developing Object Based Applications in Java Assignment A.9 public static void main(String args[]) { try { File file=new File("Name.txt"); FileReader f=new FileReader(file); int ch; … |
| | [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.sql.*; import java.util.*; import java.net.*; import java.io.*; import javax.swing.border.*; public class userdetails extends JFrame { private JLabel jLabel1; private JLabel jLabel2; private JLabel jLabel3; private JLabel jLabel4,jLabel5; private JLabel jLabel7; private JLabel jLabel8; private JTextField jTextField1; private JComboBox jComboBox1; private JComboBox jComboBox2; private … |
 | help me..how to print a sum and average of grades using Java?  |
| | Hello I am trying to get a SELECT stament to work i Java. The staement has a parameter, but Eclipse gives me the following error message: You have an error in your SQL syntax, check the manual that corresponds to your MySQL version...... Is it possible to show me how … |
| | contentPane.setLayout(null); JPanel panel = new JPanel(layout); panel.setBackground(Color.WHITE); addComponent(contentPane,panel, 0,0,595,375); |
| | THis is program in java for First 100 Prime Number as "count<100" . public class PrimeNumber { public static void main(String args[]) { int num=4; int count=0; System.out.println("First 100 Prime Number is: "); System.out.println("1"); System.out.println("2"); System.out.println("3"); while(count<100) { num++; if(num%2!=0) { int dv=3; while((num%dv!=0)&&(dv<=((num-1)/2))) { dv++; } if(num%dv!=0) { count++; … |
| | [CODE]import java.io.*; import java.net.*; import java.awt.*; import java.awt.event.*; import java.awt.geom.AffineTransform; import java.awt.image.*; import javax.imageio.*; import javax.swing.*; class ImageDrawingComponent extends Component { static String descs[] = { "Simple Copy", "Scale Up", "Scale Down", "Scale Up : Bicubic", "Convolve : LowPass", "Convolve : Sharpen", "RescaleOp", "LookupOp", }; int opIndex; private BufferedImage bi; … |
| | I want to make a java application which'll get all paypal transaction history and the details of each transaction from paypal server and store them into my database. But I can't find a way to retrieve the transaction history from paypal server. I searched the internet and came to know … |
| | Hi, I have a program that uses JButtons (under ActionEvent e) and the user clicks a button and it brings up the appropriate text file associated with that name. I have the files on a flash drive but every time i transfer the files to different computer and want to … |
| | Hey for hw i gotta do a program that spits out the perfect squares between 0 and a number entered... well i got it done but it spits out 1 extra number that goes OVER what the person entered... here's my code. [code] public static void main(String[] args) { String … |
| | Hello Friends, I want to synchronize the database from server to mobile application. I googled so much. I got much information on : [LIST] [*]DB2 Everyplace [*]IBM CloudSpace [*]PointBase(Not able to download) [*]Sync4j [*]SyncML [*]Data Sync API(Not able to find) [/LIST] Now I am confused to which one to select? … |
| | Is there method in Java to compare the strings first letter and sort the alphabetical or I have to substring and compare them with bubble sort Thanks |
| | I'm wondering if there is a more efficient way to take a 10 character (mm/dd/yyyy) date of birth String and calculate the age of the user as of today's date. My code works perfectly fine, but I feel like it could be more efficient. [CODE] package dates; import java.util.*; public … |
| | HI ,I am new in Java and i have trablle creating array of objects .This are my files,and I need to create array of objects patients thank you in advance for your help import java.util.*; public class MainPatient { public static void main(String[] args) { int choice=0; Scanner input=new Scanner(System.in); … |
| | Hey guys, I need a little help on PigLatin translator. This is "driver" class I'm given that I cannot change [CODE]import java.util.*; public class PigDriver{ public static void main(String[] args){ Scanner scan = new Scanner(System.in); String t = " "; Piglatin p = new Piglatin(); while(t.length() > 0){ t = … |
| | I'm trying to write a program where I want the user to enter a positive whole numbers into the input box. I would also like to throw up a warning if they enter a decimal, letter, or negative number. I know how to do this with the negative condition, but … |
| | 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()); } } } |
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