35,618 Topics
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| | client.java:8859: error: class, interface, or enum expected person.updateRequired = true; ^ client.java:8860: error: class, interface, or enum expected person.hitUpdateRequired = true; ^ client.java:8861: error: class, interface, or enum expected person.currentHealth -= misc.ran dom(30); ^ client.java:8862: error: class, interface, or enum expected } ^ client.java:8867: error: class, interface, or enum expected … |
| | i have to do a pyramid with a pattern like this [iCODE] 1 1 2 1 1 2 4 2 1 1 2 4 16 4 2 1[/iCODE] i just realized dani web didnt take my center pyrmaid thing it moved to the side no matter what spacing i did …  |
| | Hey folks. I'm trying to make a new Fruit object each time aMethod is called. The new Fruit object's name must be unique. The problem is that the name of this Fruit object is the same name as one of the parameters of aMethod - this name is unfortunately the … |
| | hi .. i make this code .. but when i run it ..doesn't show whole output in window ..and its not show correct answer .. i can't find error / but its not worked welll /* * To change this template, choose Tools | Templates * and open the template … |
 | I'm getting a null pointer exception pointing to the line containing [COLOR="Green"]dispatcher.forward(request,response); [/COLOR] Any suggestions as to where i have gone wrong. it wud be of gr8 help... thanks in advance:)[CODE] ArrayList empList =EmployeeDao.getEmpDetail();//this is defined already request.setAttribute("empList",empList); RequestDispatcher disp = request.getRequestDispatcher("/myPage.jsp") disp.forward(request,response);[/CODE] [CODE] ArrayList employeeList=null; ArrayList employeeList=(ArrayList)request.getAttribute("empList"); if(!employeeList.isEmpty()) { … |
| | public static void main(String[] args) { Set<Point> points = new HashSet<Point>(); points.add(); --- how to add point of "Point" type cureAlgor(0.01, 3,points); } Point is a pre-defined class. I want to know what to wrtie in points.add(). Please help! |
| | Hi my codes works fine.When i key in ,for example, asdf 546,(f and 5 is separated by space), the programe rightly take it as invalid input ,however it takes asdf and 546 as separate type and return two "Invalid input".See below. I hav no clue why it does that oher … |
| | Hi i came up with the following code for my Assignment.It works.What i dont understand was the following code, the rest of the code i did myself. if ( value == 1 ) smallest = randomNum; Why do i need to assign value to 1? Rest of my codes System.out.println("How … |
 | Hi. Sorry for this kind of post in this forum.. But i am in serious trouble and need help. My 6th semester of B.E (computer science) will end on 28th-may-2012 (final exams going on now ) And after that i need to do a major training of 45 days . … |
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| | I hav this code here that prompt me for only 1 randomNum.I know i need a second loop.how can i go about doing it public static void main(String[] args) { int ii=0; int value; int randomNum; System.out.println("How many integers shall we compare? (Enter a positive integer):"); ii = input.nextInt(); randomNum … |
| | for (int year = 1; year <= 10; year++){ amount = principal * Math.pow(1+rate, year); principal = amount; System.out.printf("%d%20.2f\n",year,amount); for (int year = 1; year <= 10; year++){ amount = principal * Math.pow(1+rate, year); System.out.printf("%d%20.2f\n",year,amount); // what is the difference between these two? |
| | I am working on a project where i need to dynamically count how many buttons need to be added to a certain panel. Each button press has to change a variable in the parent class and then to excute generation of a child panel which also dynamically generates buttons. my … |
| | I'm working on a guessing game where the object is where the player is given a board of 25 symbols and asked to try and guess the location of 6 hidden symbols. However, I've encountered two bugs whose cause I cannot identify. 1. Regardless of whether the guess is a … |
| | Hello everyone, for example, I have name.txt file. It contains three lines of text (see below): *Roses are red% Sky is blue% JAVA is cool%* All lines ended with % symbol. I need to count how many every line have characters and which character is repeated max and min times. … |
| | Hello , I'm trying to solve a "known problem" in XPath 1.0 . From [msdn](http://msdn.microsoft.com/en-us/library/bb341675.aspx) : "***Although the ordering of returned collections is not specified in the XML XPath Language 1.0 Recommendation, this extension method returns nodes in document order. Note that nodes are returned in document order even when … |
| | HI I am developing a web service client using netbeans ide . I have used the code completion feature to implement the submit message method : import javax.xml.bind.JAXBElement; import uk.co.csoft.www2.dtd.sendsms5.Message; import uk.co.csoft.www2.dtd.sendsms5.ObjectFactory; import uk.co.csoft.www2.dtd.sendsms5.Recipient; public class Main { public static void main(String args[]) { //Recipient r = new Recipient(); //Message … |
| | Hi all, I actually need to use a sorted map.So i tried using Tree Map.But the problem is that This works well with sort key having values upto 9. With more than 10 items I see abrupt results with sort key arranged in the order = 1, 10, 11,12,--------17, 2, … |
| | I need Help Here /* Name: Ashley Powell File Name: Employee */ public class Employee extends Person { private double annualSalary; private int hiredYear; private String ID; public Employee(String initialName, double initialSalary, int joinedYear, String id) { super(initialName); annualSalary = initialSalary; hiredYear = joinedYear; ID = id; } public void … |
| | Hi, I am conducting some research for a possible application and need some people to fill in my questionnaire. If you could fill this in for me it would be much appreciated. It will only take 1 minute max. Thanks https://docs.google.com/spreadsheet/viewform?formkey=dHpUYnE1RWhQcXRQNHhfQzEyZk9zYlE6MQ |
| | Good evening, How do I need to put string into array characted by character? For example: I have a string "WELCOME". Then I can call command coolarray [ 3 ] and I got a letter L ? Thanks! |
| | Hi, I'm using the getRGB function to get the color of a pixel of a BufferedImage. It returned a number like 2001231. What I want to do is use setRGB to set the color of this pixel to something so that getRGB returns 2000000 instead of the original value. How … |
| | Hello , So ive been given an assignement in my university of "fixing" XPath and get it to return the nodes in the correct order. Ive been trying to find a way around writing a very long code and breaking each expression into little peaces and putting it back together … |
| | Ok, I am totally confused - probably because I've been staring at my computer for hours, but I need some guidance (not for homework, just my own personal knowlegde)... Here's the output I'm trying to achieve: 012343210 001234321 000123432 000012343 000001234 ...And I know I need to use a for … |
| | Can anyone tell me the real time scenarios used in projects of using interface and abstract classes in java  |
 | Okay guys. I want to create discussion. Java people we all know of the Streamtokenizer class or as I call it "lexer" class. My questions is how helpful can this class be when we try to create a lexical analyzer? How can we manipulate it in order to tokenize our … |
| | hello, I made a little game that is similar to "Where's Waldo?", but it has several different people to find in each level. Anyway, each person is found by the user when he/she clicks on them. Sometimes the people are hidden in a crowd, or hidden in a bigger image. …  |
 | hi there i cant seem to figure out how to print each name and letter grade of each person once and my program displays a indexStringoutofBound execption please help solve my problem heres my codes. ackage project; import javax.swing.JOptionPane; public class DoingATest { public static void main(String[] args)throws StringIndexOutOfBoundsException { … |
| | Hello all, been a while since I've asked a question. I'm working on a project just to practice and for fun and I've run into a snag. I'm working on a painting type program and I'm trying to get a generic Buffer class for the images so I can use … |
 | hi is there any way in java programming to make a compass which shows directions if please tell me how to get the coordination of lattitude so that the needle of the compass can point to the appropriate direction with respect to these values |
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