36,051 Topics
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| | I uninstalled Java Runtime Environment 6 through Add/Remove Programs - with the intention of reinstalling the latest update version which I have not yet done. I did a Search for Java and found several files - some as far back as 1999...got my pc in 2002. Before I reinstall JRE, … |
| | O.K. I wrote my own version of the Addiction Solitaire game using a JFrame and it worked. I want to put it on the web, so I'm converting it to a JApplet. I have 52 PNG files, one for each card, that I need to be able to access for … |
| | hi well i just started learning java. and up to now we did exceptions and loops and most of the java concepts.. and i used J creator lite version. but in my project i have to make a interface. so do you have any idea how to make it done …  |
| | I'm only 11, but I know html, CSS, javascript, and C#. I was wondering, [B]if Java is like C#[/B], as it looks pretty similar, I could just start coding :)! -worldwaffle  |
| | ok, so i've been working on this project for a long time now, a falling sand game, on and off. it works [I]almost[/I] the way i want it too... 2 problems, one i don't think this community will be able to help me with, the other, the optimization, i have … |
| | hi i need help with a web page i am making the index page is a common subscription form for students you enter name email and student number, the page validates them then send them to a JSP page. the problem is i am not good at all with JSP …  |
 | I'm doing a program on the addition of 2 Sparse Matrices. This is what I have coded- [code=java] import java.io.*; class Sparse { int r,c,m[][],s[][],count,rt; static int res[][]; public Sparse() { count=0; rt=1; } //Take the matrix public void read() throws Throwable { BufferedReader buff=new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter the number … |
| | i was trying to write a code for counting the number of ocurence of a particular word from a sentence.it gives me a wrong output it starts checking for the same alphabets in the sentence rather than the word. [CODE]import java.lang.String; public class StringCount2 { public static void main(String args[]) … |
| | Hello all. I would like to calculate, assign and do a lot with my program (java). Here are my codes. import java.util.*; public class Test { public static void main(String args[]) { Scanner scan = new Scanner(System.in); String[] s = new String[9]; int a; for(a=0;a<9;a++) { s[a]=scan.next(); } } } … |
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| | Hi all, I am getting the content of an object which is returned as [B]ByteArrayInputStream[/B], and then I am assigning to another object, which accepts input as [B]ByteArrayOutputStream[/B]. Can someone please suggest as how can I convert ByteArrayInputStream to ByteArrayOutputStream... Here's my code: [code=java] ByteArrayInputStream b_input = source_object.getContent(); // how … |
| | [code] <%@ page import="java.sql.*"%> <%String fname=request.getParameter("name"); String lname=request.getParameter("last"); String id= request.getParameter("id"); String pass=request.getParameter("password"); String pass1=request.getParameter("passcon"); String month=request.getParameter("Months"); String date=request.getParameter("date"); String year=request.getParameter("year"); String gender=request.getParameter("gender"); String country=request.getParameter("country"); %> <%=try { Connection c=null; Statement st= null; DriverManager dm=null; String pass=""; String user=""; PreparedStatement pt=null; String url="Jdbc:Odbc:jaggi"; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); c=dm.getConnection(user,pass,url); if(pass.equals(pass1)) { pt=c.prepareStatement(insert into Registration … |
| | Hi Guys, Hey can anyone help me out..First of all i would like to introduce you..I am Sanjeev from India.I am a computer science final yr engineering student...I just want guideline from you all experts sitting here in this community regarding a java based project..Can you suggest any such type … |
| | I want to learn Java web development. What should I study first? JSP, servlets, and JDBC? Or should I jump right into learning to use environments like Struts, JSF, Spring, Hibernate? Which of these would you recommend, if so? (I'm from an ASP.NET/C# background, but I want to start learning …  |
| | I paint a lot of images on my screen before the JFrame is displayed...It takes along time..what can i do to make the image load faster.. |
| | Hypothetically, say i want to know how may times anyone has clicked a button in an applet. NOTE: this is not what i actually want to do but it is a good example. more specifically i have a text file in a jar, along with classes, called clicks.txt. every time … |
 | Hello everybody, I have been working on this code segment for about three days and cannot figure out what is causing this error. I am trying to get a specific value out of an arraylist of sorted objects. Here is the code: [code=java] public RateEstimator getMinRate() { // return null … |
| | Well i know the basic difference which is in C++ this is a pointer whilst Java is a reference to a class... I have a confusion though since am new in Java, can you reference a super class with "this"? more so, is the an underlying difference between the C++ … |
| | Hey Everyone, I have got a jsp "1.jsp" which will insert records in various tables. I'm using sql:transaction tag to group the sql statements together to provide transactional behavior. Some of these sql statements will be used by multiple jsps. So I created a separate jsp "Common.jsp" which contains the … |
| | I need one genric java code to read Java/servlet/jsp files and identify Connection,Statement,ResultSet Objects And find out whthere they have been closed. Output should be like this : Source file Connection/Statement/Resultset not closed  |
 | Can any one tell about the difference between the Abstract Class and Interface? Can abstract class replaces Interface? If all things can be done in Abstract class Why we need Interface? |
| | Hi, I have an xml file, corresponding to an xsd. If there some tool, which would take this xml and xsd and give me an object. And also take the object and xsd and give me xml. I read about couple of tools like JAXB, xstrem and xmlBeans. The issue … |
| | hello sir!!! i need the answer as soon as possible!! can you change this code and execute it using the JOptionPane... Please help me!!! You may send your answers to this address... <snip email> Thanks a lot!!! import java.io.*; [code=juva] public class ToyoradaII { public static void main(String []lyn) throws …  |
| | Hi everyone, I am trying figure out is there a "more proper" way to show the multiple lowest values in an array. My array has 2 of the values that are lowest among the 8 values. I would like to know is there a way to show both of them … |
| | Hello everyone, I want to know how to add menu's in my jsp page. Can any1 please provide me with a sample code, regarding the same. Also tell me how to make my logo transparent, it is blocking my background image. Please help. |
| | hi everyone, I am facing a problem which i know that you'll will surely find a remedy. I have a login.html ,login1.jsp which does the database connection and welcome.jsp the main page. so the problem is when i put the username and password it directs me to the welcome.jsp, In … |
| | Good Day! I'm working on my homework for the past 5 hrs now, i really need some help. I need to create a program that will generate a random point on the Panel. the problem is i cant seem to make the point appear on my panel. any help is … |
| | i want to browse web page on mobile phone using HTTP from .jsp programs |
| | Hi there all! I do not have a great knowledge of php but I do know basic html. I have a javascript popunder script that I would like to try on my site that runs on a php script. I know how to insert this script into an html page … |
| | Is the best way to check for 2 words of same type in a string to make a stringtokenizer and story every word in an array then compare it in a for loop? seems like a hassle for comparing for same words i was wondering if theres a better way? |
| | The idea of program is to change the images between them. Images here is stored in Icon Labels. If i click on image(label), i need to memorize this image, and change with the second image. Like a puzzle game. I can to return the last two clicked image, but when … |
| | I have this code and I am trying to have my on_path method reference the variable first but the compiler says cannot find. I have it declared not sure why its not recognized? [ICODE]public class hmwkr6 { private static final int size = 5; private static final int wall = … |
| | is it possible to create data grid in jsp without using jsf? if yes, then pl. help..  |
| | hello, Attempting to connect HSQL db by calling a config file from a java command line. However, receiving the following error message: Failed to retrieve connection info for database 'personal': Please set up authentication file 'C:\Documents and Settings\user\sqltool.rc' Here's a sample of the command: [CODE] java -jar \pathto\hsqldb.jar personal /pathto/Export_Data.sql … |
| | I have a code that play's an animation on a JFrame.. On top of that, I have added a Jpanel with few buttons. my problem is, mybuttons are not visible on the animation screen until i hover a mouse on them?? what am i doing wrong.. |
| | Hi guys! Can someone help me with my problem? I'm really not that good when it comes to coding. My problem is that how can display the number of new records received. Well heres my code The code below is the function to get the record count on Inbox <CODE> … |
 | All: For some reason all my users are able to access this one web page for our On-Demand Host to start a TN3270 session in a Java environment, but I have one person who cannot do it. I've tried absolutely everything, from trying a different browser, to reinstalling XP SP2, … |
 | i am trying to print an array list in a jsp page like this: [CODE]<body> <FORM METHOD="POST" ACTION="index.jsp"> <input type="text" name="text" value="" /> <input type="submit" value="add" /> </FORM> <jsp:useBean id="tomer" class="java.util.ArrayList" scope="session"/> <jsp:useBean id="r1" class="java.util.Iterator" scope="session"/> <% if (request.getParameter("text") !=null) {%> <% tomer.add(request.getParameter("text"));%> <%}%> <%r1 = tomer.iterator();%> <%while(r1.hasNext())%> <%{%> <%r1.next();%> … |
| | [code]import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*; // Send a simple, single part, text/plain e-mail public class TestEmail { public static void main(String[] args) { // SUBSTITUTE YOUR EMAIL ADDRESSES HERE!!! String to = "vipan@vipan.com"; String from = "vipan@vipan.com"; // SUBSTITUTE YOUR ISP'S MAIL SERVER HERE!!! String host = … |
| | Does anyone know how to change the look of the java files that are listed when you expand the java folder in the tree structure of the database? i have these numbers infront of the class file, but have no clue what they are, they are not there in toad(i … |
| | I am new to JSP. Please guide me which e-book or book should I read so that I can learn from basics to advance skills and develop a web site by own. Please help..! |
| | Hi All Im working on an exercise from a book im learning java with. It is a console app, i have to make a menu 1-4 and then evaluate what number the user entered, carry out the command and then return to the menu. My problem is that i tried … |
| | i wnt to integrate alfresco within liferay i.e running the alfresco as a portlet. . can anyone help me to solve it?? |
| | Hi all, I have a folder structure like this. dir1 ---> conf ---> a.txt dir1 ----> dir2 ---> dir3 ---> Test.java How can I read a.txt file from my Test class ? How can I use relative path there? File newFile = new File ( "<how to specify the path>" …  |
| | I want to send an SMS from my server i.e from my webpage. I need to know do i need any device related to this or can it be done with programming. Is SMPP is a protocol like SMTP or SMPP is a hardware. please reply me quickly. |
| | Hi I have a simple code snippet here that writes to a file called Student.txt : [CODE="java"] import java.io.*; import java.util.*; public class Streams { public static void main(String[] args) { String studentFirstName = "Bob "; String studentLastName = " Smith "; String finalGrade = "A"; try { PrintWriter out … |
 | I am newbie to java implementation... can any one tel me the oops concepts with real time examples.... thanks in advance... |
| | Hello. Currently i am creating a small application that works around packets. The packets are sent every 600ms. Now my quesition is this: Currently i have this (An example) [code="syntax"] public class Example { private int exampleInt = 0; public void setExample(int i) { exampleInt = i; } public void … |
| | import javax.swing.*; import javax.swing.event.*; import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.border.*; import java.awt.geom.*; class proj extends JFrame implements ChangeListener ,Runnable,ActionListener //main class { // Declarations public int bottom; public Thread t; int padding = 4; JFrame f; JTabbedPane jt ,jt1; JPanel jp,jp1,jp2,jp3,jp4; JButton j,j1,j2; JLabel lab,lab1; JComboBox jcb,jcb1; //public … |
| | I am trying to create a program that generates random passwords using the characters A-Z and the numbers 0-9. It will also have an input of what you want the length of the password to be. What I don't know how to do is to create a method to choose … |
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