36,051 Topics
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| | Hi, i got the following situation: When user clicks on some link, I'm entering a servlet in which I'm copying a file to a network drive, and than I want to open this file on the Client side, for example the file to be opened is a .pdf file. I …  |
| | Hey everyone, well ill be quickly...ive gotta a JSP page indexMembers.jsp with a button "Show My Reservations" when u click on that button it calls a JFrame (with a JTable inside) with the data from the databse that the user wrote before. now if i click on another button like … |
 | I created a GUI. with a bunch of classes (that extended JPanel) and one that extends JFrame and now I can't figure out how to transfer data between them. lets say I have a public variable set in the JFrame class and a get method like the one below: [CODE=java]public … |
| | Two-dimensional Arrays. My question is based on this info did i code the right ? if not then let me know where did i made mistake? Input Data File here : 88 90 94 102 111 122 134 75 77 80 86 94 103 113 80 83 85 94 100 … |
| | hi every body I am new but there is no time to introduce my self because i have a project to hand in no time but when i tried to lookup session bean in my servlet it give me the error: Borbean not bound //borbean is the session bean so … |
| | Hi I need to get values from xml file. I am trying to do this through JSTL.I worked out in following manner, [code]<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %> <%@ taglib prefix="x" uri="http://java.sun.com/jstl/xml" %> <c:import url="/corporate/commonjs/YUI_js/validation/valid.xml" var="url" /> <x:parse xml="${url}" var="doc" /> <x:out select="$doc/validationcheck/required" /> My xml file contains, <validationcheck> <required>Required</required> <required>この項目は必須です</required> … |
| | I already added the path of my installed java, but the problem is I cannot compile my codes. here is my path. . %SystemRoot%\system32;%SystemRoot%;C:\Program Files\Java\jdk1.6.0_10 and then this is what happens when I compile. . Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\Carlo>e: E:\>cd nerd's … |
| | hello, i'm new to jsp but i'm not new to web development and been doing PHP for quite some time... I download Java EE and SDK from sun microsystems website and from there when I installed everything, there's a ready made middle ware software to host jsp pages and servlets. … |
| | Hi I have to make a program to parse html document and check for broken links. I did the first part and now wondering is there a method or class that checks if the link is valid?if not I assumed I can construst a method myself, like get the response …  |
| | i want the code in JAVA for the program [COLOR="Red"]"To find the shortest path using the fuzzy logic"[/COLOR] |
| | I am having trouble getting output from this program. The objective of the program is to allow the user to enter 5 scores and then it is supposed to calculate the mean and rearrange the data set from highest to lowest. I am supposed to run it through the AverageDriver …  |
 | I have this method : public void ExecuteSQL(String SQL) { Koneksi getCn = new Koneksi(); Connection cnExecute = null; try { cnExecute = getCn.getConnection(); int rowNgefek = 0; Statement stExecute = cnExecute.createStatement(); cnExecute.setAutoCommit(true); stExecute.executeUpdate(SQL, rowNgefek); cnExecute.commit(); closingConnection (cnExecute,stExecute); } catch (SQLException e) { System.out.println(e.toString()); } } If insert/delete/update raise error, … |
| | Alsalamu Alikum, So, It's my first time to study and work on recursion functions, and it was said in the lecture that it is better than the iterative function because [QUOTE]they are shorter, more elegant, more readable, naturally developing and it's code is easier to understand.It comes with more cost … |
| | Hey folks, I am working on a getBalance method that retrieves a balance from a CSV file. I keep getting: [ICODE][COLOR="Red"]java.lang.NullPointerException at java.util.StringTokenizer.<init>(StringTokenizer.java:182) at java.util.StringTokenizer.<init>(StringTokenizer.java:204) at atmEngine.getBalance(atmEngine.java:100) at atmEngine.<init>(atmEngine.java:81) at Launcher.main(Launcher.java:12)[/COLOR] [/ICODE] I can't figure this one out! I threw in some console print outs to make sure it was … |
| | Hey guys, I am working on my final project, and I was wondering, I am designing the GUI and if you look at the buttons I want the green and red buttons to appear 3D like the rest of them but with a colour overlay is it possible to do … |
| | [quote] My code asks a user for a password. To properly validate the user's entry, it must include the following requirements: 1)have a length of 5 2)have an uppercase character 3)have a lowercase character 4)have a digit My loop only works for the lowercase and length of 5 requirements. Can … |
| | Hi is there a way of getting a file creation Date for a file class object? I am trying to do so on a mac. Many thanks |
| | I have a tab delimilated txt file. how can i read only the second part of the file. ex 10.0.0.0 hostname date i want to read in the hostname only what function can i use to do this?  |
| | OK, I've been reading a lot online and I think I can't do this, but I'm really hoping someone has a clever workaround. What I have is a bunch of classes with Color attributes. I'm also storing the red, green, blue, alpha values as integer attributes in those classes because … |
| | I am working on a project. Here is some background: I am working on a page that lists people and their training info. The training info is an expansion box listed underneath each person. I am trying to have the expansion box automatically open on page load if their training … |
| | Student database creating a program that will be used to manipulate a student database. This portion of the database will keep track of student data to include the students name(first, middle, last), date-of-birth, the student's id number, the student's major, and the student's GPA.Based arrays and objects,use 2 parallel arrays … |
| | How can i code in java using Two-dimensional Arrays Method to input data from the data file Method to display the table (Please align columns, but no need to use borders, line separators, etc.) Method to compute the average of each row and display it Method to compute the average … |
| | we would like to build a system in java ( set of classes ) to manage and handle text files . the required software uses the predefined java streams (FileReader, FileWriter,...) and allows creating and opening of new text files as well as writing and reading.In plus, it allows the … |
| | I had to write a triangle code enabeling it make some functions and including constructors inside..based on using the class Point(i atached the description file of it here and the Point.class itself)..I can't write the " public static void main () " in my code cause it screams errors to … |
| | Hii Folks , Sorry For this Long Question, Problem: I Want to Create 5 check boxes and i want to reorder those components using a GridBagLayout , and it's have a Container called Local_Container,after reordering of those components add to panel, so Now we have a Container(Local_Container with a label … |
| | Hi, My problem is that I have to upload a CSV file from Client Machine (Windows) to Unix Application Server. I am using JSP method post and multipart/form-data (as in [url]http://www.roseindia.net/jsp/file_upload/Sinle_upload.xhtml.shtml)[/url]. The file is uploaded fine but the problem is it displays carraige Return (^M) a square boxes on Unix … |
| | HI Folks , Any one Here Name The Java Swing Component with "Date and Time Instance"? Thankq Sekhar |
| | Sliding Window Mechanism The sliding window mechanism is used in many protocols at many different layers. The sliding window helps in solving a number of problems. Retransmission of lost or damaged frames (or packets) and flow control problems are just examples of that. The sliding window protocol in its simplest … |
| | i am persuing my engineering.i would like to do a mini project in java.can anyone please suggest some interesting topics and guide me how to start?? |
| | Okay im reading in lines of text e.g "abcdefg" and I need to split the line into an array of characters where each character is stored in its own element so its like [a][b][c][d][e][f][g] I know how to do it with splitting words from poems etc... using something like txtLine.split(" …  |
| | Hi I am working on an incredible project, it is an GUI. I hav used a JLabel to show 10 words but it actually always shows the last one only. I think that i need a timer to make it change but i have already a timer and i cannot … |
| | [CODE]public void generateBits(Node root, int current, int counter){ if (root== null) return; if (root.left == null && root.right == null){ list.add(new HuffCode(root.theChar, current, counter)); } else{ current<<= 1; //move all the bits 1 spot to the left generateBits(root.left, current, counter+1); generateBits(root.right, (current | 1), counter+1); } }[/CODE] Somehow, this method … |
 | Hi, i' having a small problem with panels. i want the panel always to have the same size even when empty. in my program that i'm writting, i can see that the panel doesnt fit all the area where i put it ( i noticed that as i have different … |
| | Hi Folks, I have a general question about multithreading... I have a small app that is multithreaded. I have a main() class and a separate Runnable class that implements the Runnable interface. The problem I have is that the Runnable class needs to return an integer to main(). But this … |
| | I am to design an applet that produces a six sided polygon in which the coordinates are set according to the location of the mouse when it is clicked. I am struggling setting each of the clicks to the correct point. I have tried many things, however have not been … |
| | Hey guys, So I'm on the second last question of my latest homework assignment and I can not figure out what is wrong. Basically it asks you to input a date, name, amount and then prints out a check, with a word form of the name on the bottom. Well, … |
| | Hai Friends, I doknow how to store a particular data in mobile using j2me, i want to retrieve stored data while opening the application next time. is it possible in J2ME. plz help me for this problem.  |
| | Hello, I'm creating a simple voting program. Everything works apart from that the program wont calculate the % total of votes for each candidate. It displays each candidates percentage as 0.00%. I've tried everything to see why it does this but I'm fooled :( [code] import uulib.*; public class Candidates … |
| | i am using page navigation to show the search results like in google. presently my page is looking like.... FIRST PREVIOUS [1][2][3][4][5] NEXT LAST But i want to display the link FIRST when i am not in the first page. similarly should display the link LAST when i am not … |
| | so heres the issue im having. i have this class that im suppose to make for a tester class. i have to declare an array of string at the class level. there is method call to read the context of a file and put into the array. the problem im … |
| | haii friends.. i want to search for a file, which resides in my own system using jsp...that is, when i click a button, a search brower is to be displayed which showing all my folders in my system and from that i want to search for the needed file...Is this … |
| | I had a problem w/ efficiency - The problem was that using String concatenation was inefficient for large text files, when reading the whole file into the String. I've since thought about it, and I guess this is because Strings are immutable - so every time concatenation is done, a … |
| | I need to make a seating reservation system for my assignment and I have to manage .dat files. I have to store all Student objects in a file. When a student is registered, a new object is created and I need to add it to the archive. But as far … |
| | Hi guys, I'm new and I'm totally stuck on a question for class! Basically we have to get the user to enter a few sentences and then change the first letter of every sentence to a capital version. I'll post my code below. (I'm not asking for the answer just … |
| | I'm having trouble with storing bits as a byte. I've read probably 30 different sources about this already. I'm doing Huffman Compression. Lets say I read in the character "c" and I am supposed to output "1010". How would I go about doing that? I know how to write bytes … |
| | in th following code, i cant use a Text Field in the actionPerformed methode .. the textFiled is declared outside that method. i get the following error: Cannot refer to a non-final variable serverHostField inside an inner class defined in a different method How can i solve this??? Thank you … |
| | Hi, ive got to make a program to find the perimeter and area of a triangle made using vectors, and i have not a clue, ill post the code i have done so far and if any1 could give me the code for the area and perimeter you would be … |
| | Can someone please help with this project of mine? I am not really good at GUI... create a new account, check account status. and make purchase with a credit card. Create a New Account You must ask the user to input some information: applicant's name (e.g. "John Smith"), application date … |
| | is there a way to access a mysql server or a php script using java to verify a username and password? |
| | I wan't to make a page that "if i enter a value in the textbox and i press submit button in the jsp page will link the data to the jsp page by getting the data in the data base using the odbc in ms access? someone can help me |
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