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Defining Abstract Classes
How to define an Abstract class? Defining an abstract class is done using the keyword "abstract". Here is an example of abstract class: abstract class MyAbstract { protected String myString; public String getMyString() { return myString; } public abstract string getMyStringInYourWay(); }
2007-03-03, 5627👍, 0💬

How can JavaScript be used to improve the user interface?
How can JavaScript be used to improve the "look and feel" of a Web site? By the same token, how can JavaScript be used to improve the user interface? On their own, Web pages tend to be lifeless and flat unless you add animated images or more bandwidth-intensive content such as Java applets or other ...
2008-04-22, 5625👍, 0💬

What Is Integrity?
What Is Integrity? Several points about data integrity: Assures database data and structures reflects all changes made to them in the correct sequence. Locks ensure data integrity and maximum concurrent access to data. Commit statement releases all locks. Types of locks are given below. Data Locks p...
2007-04-15, 5625👍, 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, 5624👍, 0💬

How To Start a New Transaction
How To Start a New Transaction? - MySQL FAQs - Transaction Management: Commit or Rollback MySQL server offers two modes to manage transactions: Autocommit On - Default mode. Can be started with "SET AUTOCOMMIT = 1" command. In this mode, every single SQL statement is a new transaction. All changes w...
2007-05-11, 5624👍, 0💬

How To Divide Query Output into Groups
How To Divide Query Output into Groups? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements You can divide query output into multiple groups with the GROUP BY clause. It allows you specify a column as the grouping criteria, so that rows with the same value in the column will be considered a...
2007-04-20, 5624👍, 0💬

How To Generate a Feed Entry summary Element
How To Generate a Feed Entry summary Element? - RSS FAQs - Atom Feed File Structure and Elements The &lt;summary&gt; element is not a required sub-element of the &lt;entry&gt; element. But it is strongly recommended that you provide a summary element for each of your feed entries. Yo...
2007-05-12, 5623👍, 0💬

How To Tell Visitors That You Have Atom Syndication Feeds
How To Tell Visitors That You Have Atom Syndication Feeds? - RSS FAQs - Atom Feed Introduction and File Generation There are several ways you can tell your visitors that you have Atom syndication feeds available on your Web site: Showing your syndication feed URLs as hyper links with the Atom syndic...
2007-05-12, 5622👍, 0💬

What Are the Original Export and Import Utilities
What Are the Original Export and Import Utilities? - Oracle DBA FAQ - Loading and Exporting Data Oracle original Export and Import utilities are standalone programs that provide you a simple way for you to transfer data objects between Oracle databases, even if they reside on platforms with differen...
2007-05-02, 5622👍, 0💬

How To Set Page Width Relative To the Browser Width
How To Set Page Width Relative To the Browser Width? - CSS Tutorials - Page Layout and Background Image Design The easiest way to set your page width is to not set any page width. Your page width will be equal to the browser window's width minus margins. If you want to try this, you can enter the fo...
2007-05-11, 5621👍, 0💬

How To Remove Slashes on Submitted Input Values
How To Remove Slashes on Submitted Input Values? - PHP Script Tips - Processing Web Forms By default, when input values are submitted to the PHP engine, it will add slashes to protect single quotes and double quotes. You should remove those slashes to get the original values by applying the stripsla...
2007-04-22, 5620👍, 0💬

What Is Output Spooling in SQL*Plus
What Is Output Spooling in SQL*Plus? - Oracle DBA FAQ - Introduction to Command-Line SQL*Plus Client Tool The output spooling a nice feature of the command-line SQL*Plus tool. If the spooling feature is turned on, SQL*Plus will send a carbon copy of the everything on your screen to a specified local...
2007-04-29, 5619👍, 0💬

When we use windows API in .NET is it managed or unmanaged code ?
.NET INTERVIEW QUESTIONS - When we use windows API in .NET is it managed or unmanaged code ? Windows API in .NET is unmanaged code.
2010-01-12, 5618👍, 0💬

How can we acheive inheritance in VB.NET
How can we acheive inheritance in VB.NET ? Inheritance is achieved by using “Inherits” keyword in VB.NET (For C# it is “:”). Simple Sample is provided in CD for understanding inheritance in folder “WindowsApplicationInheritance ”.There are two classes one is the parent “ClsParent” and second is t...
2007-10-23, 5618👍, 0💬

Which specifications does WCF follow
Which specifications does WCF follow? WCF supports specifications defined by WS-* specifications. WS-* specifications are defined together by Microsoft, IBM, SUN and many other big companies so that they can expose there service through a common protocol. WCF supports all specifications defined we w...
2007-11-04, 5617👍, 0💬

What is a valid XML
What is a valid XML? If XML is confirming to DTD rules then it’s a valid XML.
2007-10-31, 5617👍, 0💬

How To Remove White Spaces from the Beginning and/or the End of a String
How To Remove White Spaces from the Beginning and/or the End of a String? - PHP Script Tips - PHP Built-in Functions for Strings There are 4 PHP functions you can use remove white space characters from the beginning and/or the end of a string: trim() - Remove white space characters from the beginnin...
2007-04-22, 5617👍, 0💬

What Happens to the Current Transaction If a START TRANSACTION Is Executed
What Happens to the Current Transaction If a START TRANSACTION Is Executed? - MySQL FAQs - Transaction Management: Commit or Rollback If you are in a middle of a current transaction, and a START TRANSACTION command is executed, the current transaction will be committed and ended. All the database ch...
2007-05-11, 5615👍, 0💬

what is a service contract, operation contract and Data Contract - part 1
what is a service contract, operation contract and Data Contract? - part 1 In this example we will make simple service which displays the total cost of the complete product group. In simple words this service will take three parameters per product cost, number of products and the product name. In re...
2007-11-04, 5612👍, 0💬

Manual Testing
Can you design test cases based only of flow diagrams? No BRS/SRS is provided.
2008-03-18, 5611👍, 0💬

How To Tell Web Browsers That Your Web Pages Have Atom Feeds
How To Tell Web Browsers That Your Web Pages Have Atom Feeds? - RSS FAQs - Atom Feed Introduction and File Generation One way to tell Web browsers that your Web pages have Atom Feed files is to add a "link" tag in the header section of your Web pages. The "link" tag defines a "link" element with 4 a...
2007-05-12, 5611👍, 0💬

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, 5611👍, 0💬

Serializalble and Externalizable Interfaces
What is the difference between Serializalble and Externalizable interface? When you use Serializable interface, your class is serialized automatically by default. But you can override writeObject() and readObject() two methods to control more complex object serailization process. When you use Extern...
2007-03-03, 5611👍, 0💬

How To Load Data with SQL*Loader
How To Load Data with SQL*Loader? - Oracle DBA FAQ - Loading and Exporting Data Let's say you have a table defined as: CREATE TABLE student (id NUMBER(5) PRIMARY KEY, first_name VARCHAR(80) NOT NULL, last_name VARCHAR(80) NOT NULL, birth_date DATE NOT NULL, social_number VARCHAR(80) UNIQUE NOT NULL)...
2007-04-30, 5610👍, 0💬

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