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What is the difference between System.String and System.StringBuilder classes
What is the difference between System.String and System.StringBuilder classes? System.String is immutable; System.StringBuilder can have mutable string where a variety of operations can be performed. 2007-10-23, 5828👍, 0💬

What Are the Logical Operations
What Are the Logical Operations? - Oracle DBA FAQ - Understanding PL/SQL Language Basics PL/SQL supports 3 logical operations as shown in the following sample script: PROCEDURE proc_comparison AS x BOOLEAN := TRUE; y BOOLEAN := FALSE; res BOOLEAN; BEGIN res = x AND y; res = x OR y; res = NOT x; -- m... 2007-04-30, 5827👍, 0💬

Transient Variables
What is a transient variable? A transient variable is a variable that may not be serialized. If you do not want some variables to be serialized, you can mark those variables transient or static. 2007-03-03, 5827👍, 0💬

What is cross cutting in AOP
What is cross cutting in AOP ? When one or many concerns span across module it is called as cross cutting. Example in our audit trail example we will probably need to audit trail for customer as well as supplier. So Audit trail can span across other objects also that is termed as cross cutting. Belo... 2007-10-24, 5826👍, 0💬

What are different ways you can pass data between tiers
What are different ways you can pass data between tiers? There are many ways you can pass data between tiers :- ? Dataset the most preferred one as they maintain data in XML format. ? Datareader ? Custom classes. ? XML 2007-10-24, 5824👍, 0💬

What is DBCC
What is DBCC? DBCC (Database Consistency Checker Commands) is used to check logical and physical consistency of database structure.DBCC statements can fix and detect problems.They are grouped in to four categories Maintenance commands like DBCC DBREINDEX , DBCC DBREPAR etc , they are mainly used for... 2007-10-25, 5822👍, 0💬

How To Connect to a Local Oracle 10g XE Server
How To Connect to a Local Oracle 10g XE Server? - Oracle DBA FAQ - Introduction to Oracle SQL Developer If you have your Oracle 10g XE server running on your local machine, you can connect your Oracle SQL Developer to the server with the following steps: Start Oracle SQL Developer Right-click on Con... 2007-04-26, 5821👍, 0💬

How Can We Know state of thread?
How Can We Know state of thread? "ThreadState" property can be used to get detail of a thread. Thread can have one or a combination of status.System.Threading. Threadstate enumeration has all the values to detect a state of thread. Some sample states are Isrunning, IsAlive, suspended etc. 2009-03-06, 5819👍, 0💬

What is a JavaBean
What is a JavaBean? JavaBeans are reusable software components written in the Java programming language, designed to be manipulated visually by a software develpoment environment, like JBuilder or VisualAge for Java. They are similar to Microsoft’s ActiveX components, but designed to be platform-neu... 2007-11-12, 5819👍, 0💬

Externalizable Interface: readExternal() and readExternal()
How many methods in the Externalizable interface? There are two methods in the Externalizable interface. You have to implement these two methods in order to make your class externalizable. These two methods are readExternal() and readExternal(). 2007-03-03, 5819👍, 0💬

What is a CLR?
What is a CLR? Full form of CLR is Common Language Runtime and it forms the heart of the .NET framework. All Languages have runtime and its the responsibility of the runtime to take care of the code execution of the program. For example VC++ has MSCRT40.DLL,VB6 has MSVBVM60.DLL, Java has Java Virtua... 2007-10-22, 5817👍, 0💬

What Is CSS (Cascading Style Sheets)
What Is CSS (Cascading Style Sheets)? - CSS Tutorials - Introduction To CSS Basics CSS (Cascading Style Sheets) is a technical specification that allows HTML document authors to attach formatting style sheets to HTML documents. When HTML documents are viewed as Web pages through Web browsers, the at... 2007-05-11, 5813👍, 0💬

Do You Need to Write a Test Class for Every Class That Need to Be Tested?
Do You Need to Write a Test Class for Every Class That Need to Be Tested? This is a simple question. But the answer shows your organization skills. The technical answer is no. There is no need to write one test class for each every class that need to be tested. One test class can contain many tests ... 2008-02-26, 5812👍, 0💬

How To Sort an Array by Values
How To Sort an Array by Values? - PHP Script Tips - PHP Built-in Functions for Arrays Sorting an array by values is doable by using the sort() function. It will re-order all pairs of keys and values based on the alphanumeric order of the values. Then it will replace all keys with integer keys sequen... 2007-04-21, 5809👍, 0💬

How do we connect to SQL SERVER, which namespace do we use
How do we connect to SQL SERVER, which namespace do we use ? Below is the code, after the code I have given the explanation for it. For this sample we will also need a SQL Table setup which I have imported using the DTS wizard. Private Sub LoadData() ‘ note :- with and end with makes your code more ... 2007-10-24, 5806👍, 0💬

What Happens If a JUnit Test Method Is Declared as "private"
What Happens If a JUnit Test Method Is Declared as "private"? If a JUnit test method is declared as "private", the compilation will pass ok. But the execution will fail. This is decause JUnit requires that all test methods must be declared as "public". For example: type HelloTestPrivate.java import ... 2008-01-24, 5804👍, 0💬

What is well formed XML
What is well formed XML? If a XML document is confirming to XML rules (all tags started are closed, there is a root element etc) then it’s a well formed XML. 2007-10-31, 5804👍, 0💬

Is XML meant to replace HTML
Is XML meant to replace HTML? No, they both go together one is for describing data while other is for displaying data. 2007-10-31, 5803👍, 0💬

How To Randomly Retrieve a Value from an Array
How To Randomly Retrieve a Value from an Array? - PHP Script Tips - PHP Built-in Functions for Arrays If you have a list of favorite greeting messages, and want to randomly select one of them to be used in an email, you can use the array_rand() function. Here is a PHP example script: &lt;?php $a... 2007-04-21, 5803👍, 0💬

What Is a Required Attribute
What Is a Required Attribute? - XHTML Tutorials - Introduction To Tag and Attribute Syntax A required attribute is an attribute required by the XHTML element. When you write an XHTML element, you must include all attributes required by this element in the opening tag. Optional attributes can be omit... 2007-05-12, 5800👍, 0💬

What is Dispose method in .NET
What is Dispose method in .NET ? .NET provides “Finalize” method in which we can clean up our resources. But relying on this is not always good so the best is to implement “Idisposable” interface and implement the “Dispose” method where you can put your clean up routines. 2007-10-23, 5799👍, 0💬

How can I show the entire validation error message in a message box on the client side
How can I show the entire validation error message in a message box on the client side? In validation summary set “ShowMessageBox” to true. 2007-10-24, 5797👍, 0💬

How To Insert Multiple Rows with One INSERT Statement
How To Insert Multiple Rows with One INSERT Statement? - Oracle DBA FAQ - Understanding SQL DML Statements If you want to insert multiple rows with a single INSERT statement, you can use a subquery instead of the VALUES clause. Rows returned from the subquery will be inserted the target table. The f... 2007-04-21, 5797👍, 0💬

How To Avoid the Antialias Edges When Cutting and Pasting
How To Avoid the Antialias Edges When Cutting and Pasting? - PSP Tutorials - Fading Images to Background Colors with PSP When you finish a larger image and want to select one area as a new image, you can use the Selection tool to cut and paste that area into a new image. But the new image will show ... 2007-05-09, 5794👍, 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