35,618 Topics
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| | 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 |
| | I'm trying to create a simple program that will check for any given number (an ID) provided by the user and check this ID with an array of numbers inside my program. If the correct ID is given, it will display "Valid ID" if the ID provided by the user … |
| | I am trying to write a program that will monitor my routers and servers and notify me when they go down. I am looking for a way to ping the host and read the reply. The InetAddress.isReachable method is the only thing i could find but it uses the echo …  |
| | Please help me with a simple watch program. In the program,I have to display on the same line. i have written the following code which is not working. pls look into it [code] class watch { private int h,m,s,a=0,b=0; public void calc() { for(;a==b;s++) { if(s%60==1) { m++; } if(m%60==1) …  |
| | Hello, i'm working on netbeans and want to access my database using this code: [CODE=java] import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class connect { /** * @param args */ public static void main(String[] args) { try { Class.forName("com.mysql.jdbc.Driver").newInstance(); } catch (Exception ex) { System.out.println("error \n"); … |
| | Hi. I need to do a scramble game. Simply I need to randomly select a word from my set of strings and print out in shuffled string. Such as if the word is "banana" it should print out something like "anaban" and there should be text field for user to … |
| | hi, is session_id is generated by javapage in one website is equal to session_id generated by phppage????.because i integrated php pages to java pages in that website. so i maitain session based on that java page. is this possible to session_id from java page to php page, if i get …  |
| | can anyone send me the javascript material or any link for material? |
| | basically i have a 3d array of chars, i need to be able to save and load it using text files. Any as to how i would actually do it? Im familiar with reading lines using BuffererdReader and stuff. Im thinking use a loop to save each element to a …  |
| | error message cannot find constructor `lottery(int[])` import java.util.Random; public class Lottery { private final int NUM_DIGITS = 5; private int[] lotteryNumbers = new int[NUM_DIGITS]; private int[] userNumbers; private int matches; public int[] getLottery(int[] l) { // Create an array the length of l. lotteryNumbers = new int[5]; // Random object. …  |
| | Hi guys, i've a problem when running java application connected with sqlite database the connection is done with netbeans IDE, but when i trying to run the application i get the following error [COLOR="Red"]init: deps-jar: compile: run: 06/12/2008 04:42:49 ص org.jdesktop.application.Application$1 run [COLOR="Green"]SEVERE: Application class desktopapplication3.DesktopApplication3 failed to launch javax.persistence.PersistenceException: … |
| | hi, i'm trying to reference a class outside the current working package how to reference this class to create an object??? |
| | Alright, so for the output: 0 2 4 6 8 10 1 3 5 7 9 11 3 6 9 12 15 18 6 10 14 18 22 26 ... (the pattern presented goes on forever) a code must be written to create it. I know I need a for …  |
| | please any body know and explain Abstract class and Interface ? |
| | hai friends, I want to import a photo from server machine to client through java..s there any way to import that.. Thanks in advance |
| | I need help with this code. it's basically a lotto program, but I only need to know how to get the 1st number right to do the rest. the user needs to be able to enter a number between 0 and 55. The program has to send an error message … |
| | Hi everyone! My problem basically boils down to this: I have 71 items, and each item can be either on or off. I need to consider all the combinations (permutations?) and go through a 100 for loop for each of the 2^71 scenarios...on the scale of 10^23. Two questions: [CODE]1) … |
| | Okay so this is the deal. I want to make a call to a routine that replaces all of one certain type of integer with a number. I have it to where it is replaceing the first, however, it misses the tail node.[ICODE] public static SimpleList<Integer> replaceAll(Integer old, Integer nEw, … |
| | [ICODE] public static boolean member(Integer obj,SimpleList<Integer> l); // returns true if obj is a member of l, false otherwise { }[/ICODE] the question is how could I use recursion to show that there is a member of a list? I thought that maybe if (l.isEmpty()) {return false} else ? thanks |
| | hello, i need to create an applet for a "company", in which you log in, and according to your possition(ex: worker, manager) you can see and change different objects such as sallery and the abililty to fire people. im completely stuck on the login part, i have the gui set … |
| | Hi everybody, I'm really new to java and I'm not sure how to do this, //Create an ArrayList of String type to hold first names of the students I created mine like this.... ArrayList<String> first = new ArrayList<String>(); |
| | Hi, I'm new to Java and I need help with the following if someone can help me: Write a program named Personnel that maintains salary information for the employees of a company. The program should display a text based menu, giving the user a choice of selecting a command. The … |
| | <jsp:include page="hlinks.jsp"/> is not workin on the server. I have taken a webspace and uploaded my files on server. the problem is contents ofpage hlinks.jsp is not included on the page where it is included. What changes should i make in my code so that the tag will work. Similarly … |
| | Is there any clause in applet that counts down the remaining time given? |
| | I hav created an applet window.. now i want to disable d maximise button.. can u plz say me how can i do dat..?? |
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