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JComponent and Component
Why does JComponent have add() and remove() methods but Component does not? Because JComponent is a subclass of Container, and can contain other components and jcomponents. 2007-04-03, 5839👍, 0💬

What are COM objects?
Managed Code and Unmanaged Code related ASP.NET - What are COM objects? COM objects are another type of unmanaged code that you can use from .NET assemblies. Because COM is widely used, Visual Studio includes built-in tools for importing and using COM objects within .NET assemblies. Visual Studio al... 2009-04-07, 5838👍, 0💬

How to decide on the design consideration to take a Datagrid
How to decide on the design consideration to take a Datagrid, datalist or repeater ? Many make a blind choice of choosing datagrid directly, but that's not the right way. Datagrid provides ability to allow the end-user to sort, page, and edit its data. But it comes at a cost of speed. Second the dis... 2007-10-24, 5838👍, 0💬

How Many Document Types Are Defined for Atom Feed Files
How Many Document Types Are Defined for Atom Feed Files? - RSS FAQs - Atom Feed File Structure and Elements There are 2 document types defined for Atom feed files: Atom Feed Document - Representing an Atom feed, including metadata about the feed, and some or all of the entries associated with it. It... 2007-05-12, 5838👍, 0💬

How To Get the Last ID Assigned by MySQL
How To Get the Last ID Assigned by MySQL? - PHP Script Tips - Working with MySQL Database If you use an ID column with AUTO_INCREMENT attribute, you can use the mysql_insert_id() function to get the last ID value assigned by the MySQL server, as shown in the sample script below: &lt;?php include... 2007-04-18, 5838👍, 0💬

What Is Synchronization
What do you understand by Synchronization? Synchronization is a process of controlling the access of shared resources by the multiple threads in such a manner that only one thread can access one resource at a time. In non synchronized multithreaded application, it is possible for one thread to modif... 2007-03-03, 5837👍, 0💬

SingleThreadModel Deprecated
In the Servlet 2.4 specification SingleThreadModel has been deprecated, why? Because it is not practical to have such model. Whether you set isThreadSafe to true or false, you should take care of concurrent client requests to the JSP page by synchronizing access to any shared objects defined at the ... 2007-04-03, 5834👍, 0💬

What are wait handles
What is a mutex object ? Wait handles sends signals of a thread status from one thread to other thread. There are three kind of wait modes :- ã WaitOne. ã WaitAny. ã WaitAll. When a thread wants to release a Wait handle it can call Set method. You can use Mutex (mutually exclusive) objects to a... 2007-10-22, 5832👍, 0💬

How To Create a New Table in Your Schema
How To Create a New Table in Your Schema? - Oracle DBA FAQ - Managing Oracle Database Tables If you want to create a new table in your own schema, you can log into the server with your account, and use the CREATE TABLE statement. The following script shows you how to create a table: >.\bin\sqlplus /... 2007-05-03, 5831👍, 0💬

What Are White Spaces in HTML Documents
What Are White Spaces in HTML Documents? - CSS Tutorials - Understanding Multiple Element Formatting Rules White spaces are combinations of continuous white space characters: " " - The space character. "\t " - The tab character. "\n " - The new line character. "\r " - The carriage return character. 2007-05-11, 5829👍, 0💬

Is Struts efficient
Is Struts efficient? Yes. The Struts is not only thread-safe but thread-dependent (instantiates each Action once and allows other requests to be threaded through the original object. ActionForm beans minimize subclass code and shorten subclass hierarchies. The Struts tag libraries provide general-pu... 2007-12-07, 5827👍, 0💬

What Happens If You Do Not Have Privileges to Create Database
What Happens If You Do Not Have Privileges to Create Database? - MySQL FAQs - PHP Connections and Query Execution If your MySQL server is provided by your Internet service company, your user account will most likely have no privilege to create new databases on the server. In that case, your CREATE D... 2007-05-10, 5826👍, 0💬

What’s the use of resource manager class
What’s the use of resource manager class? ResourceManager class helps us to read the resource files and get the values using key. First you need to create the object of resource manager. You need to specify the resource name and the assembly in the constructor. private ResourceManager objResourceMan... 2007-11-01, 5825👍, 0💬

Can you explain what is DCOM
Can you explain what is DCOM ? DCOM differs from COM in that it allows for creating objects distributed across a network, a protocol for invoking that object’s methods, and secures access to the object. DCOM provides a wrapper around COM, hence it is a backwards compatible extension. DCOM uses Remot... 2007-10-22, 5825👍, 0💬

How To Connect to a MySQL Sever with Default Port Number
How To Connect to a MySQL Sever with Default Port Number? - MySQL FAQs - PHP Connections and Query Execution If you want to connect a MySQL server with default port number, you can use the "mysql_connect($server)" function, where $server is the host name or IP address where the MySQL server is runni... 2007-05-10, 5825👍, 0💬

Is a JavaScript script faster than an ASP script?
Is a JavaScript script faster than an ASP script? Yes. Since JavaScript is a client-side script it does not require the web server's help for its computation, so it is always faster than any server-side script like ASP, JSP, PHP, etc.. 2008-07-08, 5824👍, 0💬

How To Start a New Transaction Explicitly
How To Start a New Transaction Explicitly? - MySQL FAQs - Transaction Management: Commit or Rollback If you are confused on the implicit new transaction rules, you can always start a new transaction with the "START TRANSACTION" command to start a new transaction explicitly. "START TRANSACTION" comma... 2007-05-11, 5824👍, 0💬

How To Pass a Parameter to a Cursor
How To Pass a Parameter to a Cursor? - Oracle DBA FAQ - Working with Cursors in PL/SQL When you define a cursor, you can set a formal parameter in the cursor. The formal parameter will be replaced by an actual parameter in the OPEN cursor statement. Here is a good example of a cursor with two parame... 2007-04-28, 5824👍, 0💬

What Are the File Upload Settings in Configuration File
What Are the File Upload Settings in Configuration File? - PHP Script Tips - Uploading Files to Web Servers There are several settings in the PHP configuration file related to file uploading: file_uploads = On/Off - Whether or not to allow HTTP file uploads. upload_tmp_dir = directory - The temporar... 2007-04-19, 5824👍, 0💬

What Is PL/SQL Language Case Sensitive
What Is PL/SQL Language Case Sensitive? - Oracle DBA FAQ - Understanding PL/SQL Language Basics PL/SQL language is not case sensitive: Reserved words are not case sensitive. For example: CASE and Case are identical. Variable names and other names are not case sensitive. For example: TOTAL_SALARY and... 2007-05-01, 5823👍, 0💬

Is Ajax just another name for XMLHttpRequest?
Is Ajax just another name for XMLHttpRequest? No. XMLHttpRequest is only part of the Ajax equation. XMLHttpRequest is the technical component that makes the asynchronous server communication possible; Ajax is our name for the overall approach described in the article, which relies not only on XMLHtt... 2009-06-23, 5819👍, 0💬

How To Enter Comments into XHTML documents
How To Enter Comments into XHTML documents? - XHTML Tutorials - Introduction To Tag and Attribute Syntax If you want to enter comments into an XHTML document, you can use the comment tag: "&lt;!-- ... --&gt;". Here are some good examples of XHTML comments: &lt;!-- Start north banner --&a... 2007-05-12, 5818👍, 0💬

How To Use "IN" Parameter Properly
How To Use "IN" Parameter Properly? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions Here are the rules about IN parameters: A formal IN parameter acts like constant. It can not be assigned with new values. An actual IN parameter can take a value or a variable. An actual IN param... 2007-04-25, 5818👍, 0💬

What Is a White Space Character
What Is a White Space Character? - XHTML Tutorials - Introduction To Element Content Syntax A white space character is a character that leaves nothing on your screen. There are 4 known white space characters: " " - The space character. "\t" - The tab character. "\n" - The new line character. "\r" - ... 2007-05-12, 5817👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML