32,204 Topics
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| | public class StringSet { public static void main(String[] args){ StringSet ss1 = new StringSet(); ss1.insert("the"); System.out.println(ss1); } /** * Creates an empty StringSet object. */ private String[] data; public StringSet () { data = new String[0]; } /** * If e is null, throws an IllegalArgumentException. * Else, if there … |
| | Hello, I am facing this difficulty here : First I'll give code public class Game extends JFrame { private JPanel contentPane; //private JPanel settingPane; protected JLabel lblPlayerName2; // I am using this one for my testing JLabel[] lbls = new JLabel[9]; private final ButtonGroup buttonGroup = new ButtonGroup(); public static … |
| | /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package primenumber; /** * * @author mcmanuel */ public class PrimeNumber { /** * @param args the command line arguments */ public static void main(String[] args) { int num, a, b, …  |
| | I have a homework question that I'm a little thrown off by. Mostly because we haven't messed with strings much in class. Any help would be greatly appreciated. Using the UML class diagram as a reference, complete the Student class declaration. (fill in the blanks) class Person { public String … |
| | I am trying to understand how exactly you are meant to prompt a user for two numbers and then list a menu for them to choose the course of action they want to do with those numbers however I am quite new to java and do not understand the concept … |
 | Hey everyone. So I'm trying to create a siple text editor for handling HTML. I got the majority of the program written to where when you click the toolbar the text is inserted. The only problem is that it only inserts it at the end. So Now I'm trying to … |
 | Hello I have the following: String somestring="203/9834/345"; somestring.replace("/",""); System.out.println(somestring); But it does not remove the slashes. How can I remove them? Thanks |
| | this code works fine. all it's doing is setting collision around enemy. and if player touches player from the right than player moves to the right. if player touches enemy from left than player moves to the left. playerX = player x postion playerY = player y postion playerW = … |
| | i am newbies here. i need help in build fuzzy logic in java. actually i did not have any idea how to built it. i want to built a fuzzy system using java for my final project. # i need a sample as my guide to build this system. # … |
| | >Write a Java program that recursively reads ten names from a file, and then outputs the total number of characters in the names, the list of names, and the list of names in reverse order. All looping must be performed recursively. > Jay Walker Erol Flintstone C. Erol Madre Billy … |
| | can anyone help me in this. **what is top level class in java?**  |
| | Hi, Can anyone guide me that how to create interactive graphics (like the following link) 1) http://www.nytimes.com/interactive/2009/03/10/us/20090310-immigration-explorer.html. 2) http://www.guardian.co.uk/business/interactive/2012/oct/17/eurozone-crisis-interactive-timeline-three-years. I am new to languages and dont have any specific knowledge.So any suggestions from where to start,any self help tutorials web links or websites,etc Thanks, Viv Please try this link http://www.marijerooze.nl/thesis/graphics/  |
| | **Write a single Program in Java that illustrates the use of following Object Oriented Programming (OOP) features Classes Objects Inheritance Methods State** |
| | Am trying to draw image on jpanel or jlabel when button is been click on, so i added actionperformed on my button as follows. private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: Image imag = new ImageIcon(this.getClass().getResource("img/top_bg.jpg")).getImage(); showPix1.setLayout(new BorderLayout()); showPix1.add(new paintPhotos(imag,20,20), BorderLayout.CENTER); } I have a … |
| | StringBuffer sb = new StringBuffer(new String("Hello")); //Case 1 StringBuffer sb1; //Case 2 String s = new String("Hello"); // Case 2 sb1=s; //Case 2 StringBuffer sb3; //Case 3 sb3 = new String("Hello");//Case 3 Case 1 compiles fine and outputs *Hello* but Case 2 and Case 3 gives compiler error saying incompatible … |
| | hi, i'm new to java ,can any one please tell me what is iterator in java? |
| | so i know japplet, jframe, jdialog, jwindow, jpanel windows to create gui. japplet = you use japplet for website with no resizeable or main buttons jframe = ??? ... try to explain as much as you can. i want to know adv and dis of these window. |
| | `** # I know it should be written that : ArrayList ar = new ArrayList(); while(rs.next){ int mxtype = rs.getInt("mxtype"); } int mxtypes[] = ar.toArray();//here will be point out ,need to convert to ...... # **` |
| | My logic for run background music when click button. b.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { ContinuousAudioDataStream loop=null; AudioPlayer mgp=AudioPlayer.player; try{ AudioStream bgm=new AudioStream(new FileInputStream("C:/Users/Public/Music/Sample Music/Sleep Away.mp3")); AudioData md=bgm.getData(); loop=new ContinuousAudioDataStream(md); } catch(IOException ex){ } mgp.start(loop); loop=null; } }); Hello EveryOne, I am new to Java and creating a small …  |
| | I am writing a java netbeans platform application that alerts end users when certain dates, conditions are met, etc... So I want to give the option when the end user installs the program of whether or not the program starts when they log into the computer or not. I also … |
 | Hello!!! mmm am learning OOP in Java ... and now I'm facing a prob in reading/writing .txt file here's my code: import java.util.Scanner; import java.util.Formatter; import java.io.File; import java.io.FileNotFoundException; public class Tester { public static void main(String[] args) { Scanner scan = null; Formatter formatter = null; File fileI; File … |
| | Hi, I am currently working on a script that will compare two numbers from a file. I am thinking that I need to use a regular expression in order to get the numbers, however I don't know what the regex would be since there are multiple numbers through out the … |
| | Hi all - I am having a little trouble getting going on the methods for this assignment. I need to use a method which passes a Scanner as the object to create an array that is the correct size, but has null values. It reads in a file which contains … |
| | For part of my project, I need to write a piece of code that will perform a task (beeping) once per second for ten seconds. I found this code online and tried to modify it to fit my needs, but I couldn't seem to get it. This code doesn't beep, … |
 | this code is my attempt at modifying a simple game i found in the book "head first java".. (pg-98 if anyone's interested) the game is about sinking battleships! ... actually... its just about declaring some blocks of a virtual array to comprise a battleship, and the user makes guesses about … |
| | I wrote this program, when i run it, everything seems to work ok, but in the eclipse console i get a long list of errors, what is wrong with my program and how should i fix it? thanks import java.applet.Applet; import java.awt.Color; import java.awt.Graphics; import java.awt.List; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; … |
| | 1. need to read details of customer in a Account class 2. need to inheritence Account class to define a method for fixed deposit & saving deposit in main class i have to just call all this class pls help .... |
 | Thanks in advance Shanti |
| | Hi, what is the best way to provide followings? 1) Server Client sides 2) File serving by client request 3) Streaming by segments with iteration sample code also please. |
 | What is a flag in java? when do we need it in our program? what it is used for? |
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