36,051 Topics
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| | Hi, I'm new to php, and I would just like to know if PHP has a client side and a server side similar to jsp? Reason being - I have completed the front end of a website and I want to add all the functionality now so I'm wondering if … |
| | Hello all. Is there any one that could suggest some key words or links (besides "How to use JTabbedPane") that could generate some links to tutorials that describe how to implement the process of adding tabs to JTabbedPane during runtime? or profide some feedback on what kind of learning trail … |
| | Hi everyone, I'm working on method to fill a 2D grid with objects. This is what I have at the moment: [CODE]public void fillGrid() { for(int i = 0; i < ROWS; i++) { for(int j = 0; j < COLUMNS; j++) { String displayText = "#"; board[i][j] = new … |
| | I'm using Eclipse and when I try to build the JMS example included in j2ee tutorial, it return a NullPointerException at this: [code]connection = connectionFactory.createConnection();[/code]. Here's the code of that example: [code]public class Producer { @Resource(lookup = "jms/ConnectionFactory") private static ConnectionFactory connectionFactory; @Resource(lookup = "jms/Queue") private static Queue queue; @Resource(lookup …  |
| | What I'm trying to do is to take 7 of the scores from judges and discard the lowest and the highest score then average five scores that remain after. I got to where I can get all of the scores, but I have no idea how to take the lowest … |
| | Hi guys, I am writing a small application which needs to load some images, and other resources. I am currently trying to find the best way to package these resources in my application. I have looked at some examples, I but I have been having trouble understanding them, and many … |
| | Hello, I need to send messages to Android phones through P2P on 3G connection. Sending and receiving works perfectly on lan ip addresses(on wi-fi) but not on 3g or 2g. On 3g I send a message but it never appears on the other end of the line. Can anyone tell … |
| | Can I ask for some advice / help please, I am writing a UI that upon the user making a selection from a drop down list it then populates details about the selection in text boxes. I am writing this as three classes the main class, the UI (User Interface … |
| | Design and implement an object-oriented program describing two kinds of BANK accounts, [B]FixedFee[/B] and [B]ChargeableFee[/B], that differ in the way that fees are charged: • FixedFee: There is a fixed £5.00 fee at the end of the each month • ChargeableFee: Each withdrawal costs £0.50. The total fee is calculated … |
| | [CODE] import javax.swing.JOptionPane; public class Test1 { public static void main (String[] args) { // Method 1 Test3 method1 = new Test3(); // is this the method to call Test3()? JOptionPane.showMessage (null, method1 // Method 2 JOptionPane.showMessageDialog (null, Test3()); // Method 3 JOptionPane.showMessageDialog (null, Test3.toString()); } } class Test2 { … |
| | [CODE]import javax.swing.*; class Month { public static void main(String[]args) { String value=JOptionPane.showInputDialog(null,"Enter Month Day and Year"); if(value.length()==10) { char Month=value.charAt(0)+value.charAt(1); char Day=value.charAt(3)+value.charAt(4); char Year=value.charAt(6)+value.charAt(7)+value.charAt(8)+value.charAt(9); JOptionPane.showMessageDialog(null," "+Month+"/"+Day+"/"+Year+""); } else { JOptionPane.showMessageDialog(null,"INVALID INPUT!!"); } } }[/CODE] Hello i need help about combing the charAt()'s for example i would input 05/05/2010 i want … |
| | hi there. Just wanna check if I am coding this wrongly, [CODE]int sumOfVotes = 23 int howlong = 94 double SimPercent = ((sumOfVotes / howlong) *100);[/CODE] Shouldn't the answer, SimPercent, be 24.4? Tks! |
| | Hi, I got a compile error of incompatible types - lang.object is found but int expected on line 21. But when i put int in front of square, it says .class error:/ P.S. I didn't write everything here, I got some codes from other programs:P [CODE]import java.util.ArrayList; /** A magic … |
| | Hello everybody; m screwed by searching, and dont get any satisfactory material, i want to know that, if i have a button of NEXT then how it will close that GUI and open the new one from another class?? kindly help me  |
| | Hello, everyone, Next semester, I will be taking a course in Java programming language, and was wondering if anyone knew of a good IDE that runs in the Red Hat/Fedora environment. (Preferably something installed through YUM.) I tried a Google search on this, yet the only thing I seem to … |
| | i need to write a code that will download an excel file from a website every time it is ran. what im trying to do is automatically import real time electricity rates into excel. im a beginner in programing and am seeking help for my senior design project. Thank you |
| | i want to download a file from ftp to my local machine using java code. Can anyone help me out pls?? n provide the jar file used in the code. |
| | hello; i have gui on which i have a button of ADDMEMBER and this is in my package of Member; now i want to open another gui from another package of LIBRARY; how i will do it?? i have searched it alot kindly answered me .... Thnx |
| | I have this recursive method that counts the amount of negative numbers that lie in the array called "NumArray" [CODE]public static int countNegative(double[] NumArray, int startIndex, int endIndex) { if (startIndex == endIndex) { if (NumArray[startIndex] < 0) { return 1; } else return 0; } else if (NumArray[endIndex] < … |
| | I'm trying to evaluate postfix expressions but i cannot get it right. I always get the result value as 0 and in my evaluate method it keeps saying my num1 num2 and result have not been initialized. Any help is appreciated. [code] package collection; import java.io.*; public class Postfix { … |
| | Hello, I'm having trouble translating an algorithm. I'm not sure I coded bits of this correctly, but I'm certain that I have no idea how to compare an item with a node identifier (cannot apply > operator with T,T) but since this is an insert sorted method rather than insert … |
| | So I'm suppose to create some code that will perform some methods in recursion. Here's the prompt: [I]Assignment #9 will be the construction of a program that reads in a sequence of numbers (not necessary integers) from standard input until 0 is read, and store them in an array (including … |
| | Hi Guys, I'm trying to have the user enter an integer than an outline of a pyramid would be printed on the console. I just can't get the last line to print out with "*" all across. So say a user enters 5 I need the output to be: [CODE] … |
| | Hi. I'm new to this forum and to programming in general. This is my first programming class and it is in JAVA. I have been doing alright in the class, but am really struggling with this weeks program assignment. If you could help me out at all I would really … |
| | write a public class called IfElseDemo. Create a Method called go [I][B]that takes the args String array from the main method[/B][/I]. in that method create an if/else block that looks at the first element of the array and uses the string equals method to determine the output. if it contains … |
| | Well I am now starting a new program and it evolves get the users height, weight, age and then calculating it into hat, waist, jacket sizes. I have to have four made methods in it also. One for each clothing size and on for asking the user if they want …  |
| | Hi, I need help in creating a never ending array using java. It should basically work like and ArrayList but should be done using arrays. |
| | Hello. I have been reading some stuff on the action command pattern. ever heard of it? More inportantly, Do you understand it? Because I do not. although I would like to ask if the following class could use the command pattern as aposed to 'if" or "switch" statements. I understand … |
| | To code pretty much makes a grid of a check board. However I want to modify it so if I click on any cell of the grid of the checkerboard it will display a red circle. If I click on a cell that already has a circle, it will remove … |
| | Hello everybody! I have to Questions to ask please: 1) How can I find the maximum value in a single linked-list recursively? this is what I tried to do: int findMax(int key){ Node max=head; while (max != null){ if (max < max.getKey()) return(max.getNext()); } } it ends up to an … |
| | I have a query which generates an xml file from data collected. There are 2 columns in the data (reason, TotTime) but they are joined together into one column using the concat command. Currently the results are ordered by reason, but I want to limit my results to only the … |
| | The task is to be able to move the alien right, down, and left. So far all i can get the alien to do is move right and down. I need to get it to be able to move left. Can you help me please? import java.awt.Graphics; import java.awt.Image; /** … |
| | Hello Members, Can anyone recommend any easy-to-use and free Java Script IDEs? Thank you!! sciprog1 |
| | Tell me if this makes sense structurally. I have a final this week and this homework will not be graded till after the final. I was just curious if I have as firm a grasp on this as I think I do. [CODE]public class account { private int id = … |
| | hi can any one please help me how to retieve dynamically loaded data in a html radio button in to jsp page.. actually i tried to load user account no from database in to radio buttonin html..this worked perfect .. but upon clicking the submit button i want to get … |
| | Hi guys, I've got a small problem, though I have a feeling that it will be simple to fix. I just cant figure out how to do it! I'm currently running XAMPP/Tomcat as my web server, and having developed the site in JSP/JAVA, the only way i can access the … |
| | so the question is to print out strings that appear both in the two given lists, assume each list does not contain duplicates of the same word. so with the signiture of [B]public void intersect(Node n1,Node n2)[/B] and suppose we already have another method: [B]public boolean contains(Node n, String target)[/B] … |
| | Hi! please help me for how can i scroll through database using JDBC. if i m creating 4 buttons say First,Last,Next,Previous. First button will take me to the first record of the database. Last button will take me to the last record of the database. Next and Previous will show …  |
| | Hi I made a browser game with php and a little bit of java script, the ask a random question, then i dynamically load answers as image links, which the participant should select the correct one, if it is then he will go to the link the image href points … |
| | I need to make this a popup when a button is clicked. This is the code for the Button. [CODE] JButton moreOptionsButton = new JButton("More Options"); moreOptionsButton.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { timer.stop(); } } );[/CODE] I need this information to come up in a new window. … |
| | Hi, I basically have 1 arrayList with 10 elements. [CODE] //arraylist with10 elements private ArrayList<String> arrayList1 = new ArrayList<String>(); //arraylist with nothing in it. private ArrayList<String> arrayList2 = new ArrayList<String>(); public void copy() { Collections.copy(arrayList1, arrayList2); } //The code above will copy all the elements in the first arraylist to … |
| | I'm trying to make my for loop print ODD numbers and print their sum and average. Here's my code: public class Loop_For2 { public static void main (String[] args) { double sum = 0f; int ctr = 1, ctr2 = 0; for (;ctr<=10; ctr++, ctr2++) { System.out.println(ctr); sum += ctr; … |
| | For my project I am sending the HTML value from one text editor. For that I had set the character set to UTF-8. Here I am sending value through URL. In the text editor I am Providing the facility of changing the color of text. Now when I change the … |
| | I'm not sure why it's not calculating right. When I enter a negative number, the if else statement or something does not register it's a negative number. There is a before and after, and you can see where it does not register negative numbers. Thanks in advance for your help! … |
| | Hi there, I'm having a weird error, When I click on my submit button my eventhandler that should be capturing the data from my JTextField is throwing an error : This is my first week using Java so I'm sorry if this is a newb thing. My Main function simple …  |
 | Been working on this for 2 hours non stop. Can't seem to figure out exactly what's the problem. Perhaps I'm taking a wrong approach to this problem. Right, I need to copy a singly linked list to another new list. Can use any method EXCEPT RECURSION. Here's the code so … |
| | Hello I just started working with JTabbedPane tabs. I have been using the index to navigate the pane. Now I add and remove tabs from the pane so clearly the index navigation is no good. Does anyone know some code for an easy solution for using the title or something … |
| | I am good at created a little block diagram; however, I struggle with tracing these out and I have a midterm in a few hours. I am confused about all the casting and also about #4 and #7. I thought #4 would be a compiler error because the "Decared Type" … |
| | Hi, Im new to java, mostly done networking in the past, im trying to create a program that will run a basic simulation of a number of heats for a 100m sprint. It mostly about the use of collections so nothing to complex but im completly lost. I've created a … |
| | Here is the start of my program. I am having a little trouble linking the farToCel/celToFar user defined methods with the final equations in the action statements. The output is whatever the user enters and 0 for "fah" and "cel". Example: displayTF.setText(inputTF.getText() + " Celsius is " + cel + … |
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