36,051 Topics
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| | I want to start a collaboration with just 1 Java programmer (intermediate or pro) for building our own graphics library . I have tools for real-time collaborative code editing (a plugin for eclipse), so you don't have to worry about uploading your code on internet and then I have to …  |
| | class Student { // data members private String _studentNumber; private String _studentName; private int _markForMaths; private int _markForEnglish; private int _markForScience; // Set Student Name public void setStudentName(String studentName) { _studentName = studentName; } // Set the student number public void setStudentNumber(String studentNumber) { _studentNumber = studentNumber; } // getNumber() … |
| | I'm trying to parse an XML file in Java using the XOM library. Where i'm running into an issue is when i hit nested elements. So in XOM you start with a root node, and i am able to parse the attributes out of that root node, and the three …  |
| | I'm trying to add the int values of Integer objects within an ArrayList, using a recursion (for the first time). Here's what I have so far: import java.util.Scanner; import java.util.ArrayList; public class SumArrayList { private static int calculateSumArrayListHelper(ArrayList<Integer> duplicate) { if (duplicate.size() == 0) { return 0; } int lastNum … |
| | Hi again, I posted last week about a Go Fish game that I was trying to write - well I've sorted out my past issues and now I'm trying to rewrite my CardPile class (that defines such things as the deck or a player's hand) to consist of an ArrayList … |
 | 0 down vote favorite I am currently making an application to store employee details such as name, id and email address. I am doing this using a HashMap. I am currently having difficulty with a searchByName,id and email address methods. How would i go about writing one ? Here is … |
| | Create a class named Student (class definition program). The class contains: • Private attributes to store values of Student name, Student university and Student mark. • A method named initialize() to assign initial value to the Student name, Student University and Student mark as specified in the parameter. • A … |
| | I recently left Python behind to pick up Java. In Python, a variable defined in a function could not be called outside of the function. But you could at least let the function return a value, which could be a variable defined in the function. When a variable is defined … |
| | Hi, I have a external class with paint(Graphics g) method and the class itself is working great. I can get it visible by launching it from my launch class by doing add(new Laatikko()); but when I am trying to get it work from third class it wont show up. Basicly … |
 | public class QueueAsArray implements Queue { protected int[] myArray; int count, size, rear = 0; public QueueAsArray(int newSize) { myArray = new int[newSize]; size = newSize; count = 0; } public void purge() { int index = 0; while(count > 0) { myArray[index] = 0; index++; count--; } rear = … |
| | when i call the function as System.out.println("Hi..."+i+"Welcome"); where i initialized the value of i as i=50; when this statement is executed, how that function is called... is it called in the way as Sop("hi..."); Sop(i); Sop("welcome"); **please help to understatnd the working..*  |
 | For my final project I have to develop a functional flowchart and write a menu-driven Java program, using control constructs and user-defined functions. My question is, what the heck is a menu-driven program?  |
| | hey guys i found a cool java app that helps me manage my svn directories, you can find it by following this link: http://just-download.com/software-development/other/svncontrol-1.62.zip/12a97 i was wondering whether this is an open source and whether i can get a source code for it as i would like to extend it …  |
| | //ArrayListEx(main class) import java.io.*; import man.Phone; import man.Person; import java.util.*; public class ArrayListEx{ public static void main(String[] args){ Person p= new Person(); p.setName("yo"); ArrayList<Phone> pList = new ArrayList<Phone>(); Phone ph = new Phone(); ph.setOne("dasd"); pList.add(ph); System.out.println("sgs "+pList); } } My Program has a Person,Phone and ArrayListEx(main class) classes,Person contains an … |
| | when i use following code i do not get correct output: In this the function maxHeartRate returns an Integer value.Lets take it equal to 199. public String targetHeartRate() { double a = maxHeartRate()/2; double b = ((85/100)*(maxHeartRate())); String c = a+"-"+b; return c; } Using above code i get String … |
| | Suppose I want retrieve values froma table that are greater than 10, should I first store all the values in a list and then check condition of ">10" using any language or should I just just retrieve all values directly from databse using query : `Select id from table where … |
 | So i have a working network file transfer program now (if you want to see some of the code look at my other '[article](http://www.daniweb.com/software-development/java/threads/426357/networking-in-java-not-doing-it-right)'). But now that im trying larger files, im running into a problem where i run out of memory (which is understandable when the array is 1 … |
| | Hi all I need to put a program on the server that frequently get data from the web and update the database with these data and this program should do this automatically. Can anyone put me on the Beginning of the road. I read in some websites about servlet context … |
| | Hi everyone, I am trying to pass the X and Y values that are in class Chart onto class NodeAvg, but cant come up with the code to do that.Any help appreciated: package Testing; import java.awt.Color; import java.awt.Paint; import java.io.IOException; import java.util.ArrayList; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.DrawingSupplier; … |
| | ok hey guys i have a application in vb with a textbox 2 buttons and a web browser, button1 is for navgating the web browser through what is entered in textbox1 button2 is for inserting the javascript : javascript:document.body.contentEditable='true'; document.designMode='on'; void 0 however when i clickthe button i just get … |
| | This same code run good on windows 7 32 bit Problem happen when i run it on windows 7 64 bit error : database is locked... public void genTablehadir() { tblKehadiran.setAutoCreateColumnsFromModel(false); m_data = new Kehadirantable(this); tblKehadiran.setModel(m_data); tblKehadiran.setRowHeight(23); //inisialisasi int m_Jalokasi=0,m_kode=0; Boolean m_alokasi=false; String[] parsePeriode; String m_npk="null",m_nama="null",m_ket="null",m_id="null",m_flagE="null",m_flagP="null",m_cekhk="null",m_ceksts="null"; try { db.createMasterConn(); rs1 … |
| | I know how the ++ operator and -- operator works.This is my code to count the no of digit in an integer and it works perfectly. import java.util.Scanner; public class modified_sepadigit { public static void main(String args[]) { Scanner input=new Scanner(System.in); System.out.println("Enter a number"); int no=input.nextInt(); int noOfDigit=0; int tempNo=no; … |
| | hi, i need a jsp code fordisplying a second form(form2) when i click a submit button. plz help me.  |
| | I have a written code on a simple address book which allows addnew,view single entry and view all names. I have added the delete functionality to allow one to enter name to delete its entry but I get Error: [B]cannot find symbol return addressBookEntry.delete(); symbol:method delete() location:variable addressBookEntry of type … |
| | hello friends.. i want your hep.. i m searching for a mini project in java.. so please suggest some project titles to me..waiting for your reply.. thanks take care rajesh  |
| | hi im doing my B.Tech IT i wish to do a real time project so i need help regarding of what i can do as a project some ideas regarding that, also any website i can refer for the idea . I chosen my domain as JAVA... |
| | If i create an object in Class1 and save some data in that object in Class1, how can i access that same data in Class2? Here's a code sample that should clarify my situation: Class1.java: public class Class1 implements Runnable { public ClientArray ca; public Class1(int port) throws IOException { … |
| | In a previous thread i had described a problem i had to transfer a frame or panel and all it's components as an image into a buffered image. I thought i had found the solution but it seems i am doing something wrong. In line 162 i call the method … |
| | hey all iv have an assignment(wrtie an employee payroll program) which iv seen alot of other people have posted about so sorry for bringing it up again but im stuck. Iv made the program and it runs fine but it always calculates grosspay and netpay as 0.0 everything else (firstname … |
| | Hey all, I need to get a design going to parse some XML files, in the past i have used XStream to parse files, however it doesn't appear to be working in this case. Here is a sample of the generated XML i'm trying to parse: <debugging level="0" /> XStream … |
| | Hi ! I'm devloping a Personal Trainer app on android and I need to remember training results in a history. I decided to remeber this results in a XML file. WHAT I HAVE: is an User class with results class User{ String name; int result1; int result2; User(String name, int …  |
| | > Hey guys! good evening! > hope you can help me with this one. > this is the thing that i want to do!: > > -Input 2 values : 1 string, and 1 int > -the string should have only letters (cant contain numbers!) > -encrypt the string using … |
| | Hi. i was wondering if somebody could help me. Im looking for a php function to check a get and post methods for any type of hack or injection i.e. xss php java html mysql injection. the function needs to check the get or post methods prior to using it … |
| | I am working with CSVfile program. I have already calculate something from it. Name,Age,Sex,Pincode,Disease 1. aaa,4,M,35265,flu 2. bbb,4,M,35652,Gastric 3. eee,6,F,35265,Brain 4. sss,7,M,32564,flu I have made program for calculating no. of age,sex and pincode as attached in the code. In this i have calculated that age=4 comes how many times and … |
| | I got error of ArrayIndexOutOfBounds Exception in following code. Please help me to how to solve the error.I also used String tokenizer class. import java.io.*; import java.lang.*; import java.util.Arrays; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.io.Reader; import java.util.StringTokenizer; public class CSV{ public static void main(String[] … |
| | Hey, i googled around for a solution but seem unable to come up with a reasonable solution to the problem of passing a class as a parameter. I wish to mimic the syntax used in java like below : setPenColor(new Color(255, 0, 255)); Where i can pass a new object … |
| | I need help with Cartesian coordinates: Write a Java interface named Centered with two abstract methods with no argument: one named getCenterX that returns a double, and another named getCenterY that returns also an double. The purpose of these two methods is to return the two Cartesian coordinates of the … |
| | Hello friends, I am working with jsp and oracle database and The problem is after inserting 3 enteries(rows) through form filling into database next enteries are not going in databse.So please suggest me something.  |
| | Hey, Guys and gulls i need help with the following asap. I'm trying to code a checkers board in java and populate it with checkers and then paint this onto a JPanel. I then add the JPanel to my JFrame. I am able to draw my checkers board and populate … |
| | Whenever I load the object there are these random symbols around the data. public void Save() { try { System.out.println("Where would you like to Save?"); File thefile = new File(Input.next()); FileOutputStream fout = new FileOutputStream(thefile); ObjectOutputStream oos = new ObjectOutputStream(fout); oos.writeObject(list.getRoot()); oos.flush(); oos.close(); fout.flush(); fout.close(); } catch (Exception e1) { … |
| | Hi I am currently writing a pool game in java and am very close to finishing it. I am having a problem with the rule of the black ball being potted out of sequence. I need all balls to be potted first before the black ball is potted if all … |
| | Hi Guys [B]I must ask everyone bear with me regarding my idea it needs a bit of explaining before it makes sense[/B] to start this is totally a project in my own time for my own learning and development in programming it is being done for my employer but I … |
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| | HOw can i assign a default action of Enter key after cell of jtable is edited to a Button??? |
 | hey there, I am trying to set up tomcat on my computer (I am so new to this, I am not even sure I am explaining my problem correctly.) I was told to install XAMPP. I did using the installer that appache's web site offers. It says that the installer … |
 | import java.awt.*; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import javax.swing.*; import java.io.*; public class one extends JFrame { public one() { JPanel p = new JPanel(); JLabel l = new JLabel(); setTitle("ScrollText"); setSize(600, 400); setLayout(new BorderLayout()); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); BufferedImage image; p.add(l); add(p); try { File file = new File("D://Photos//foto(222).jpg"); image = ImageIO.read(file); … |
| | Hey all, I need to get a design going to parse some XML files, in the past i have used XStream to parse files, however it doesn't appear to be working in this case. Here is a sample of the generated XML i'm trying to parse: <debugging level="0" /> When … |
| | I have two differnt classes' that extend from the JFrame class. I have a button on one frame that should go to the next Frame, but how would I do that? |
| | Hi, are there any Java book available for some one who has NO knowledge about programming at all? I tried books like head first java, thinking in java but they were no help. Head first java started out with coding and I just knew nothing by reading the syntax. Are … |
| | Hi, I am currently working on a java program for class and I cannot figure out what I am doing wrong. Each week I have been creating this java program that calculates sales, total compensation, etc. Well for my final team assignment my group has to take a piece of … |
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