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What Is a Deadlock
What Is a Deadlock? Deadlock is a unique situation in a multi user system that causes two or more users to wait indefinitely for a locked resource. First user needs a resource locked by the second user and the second user needs a resource locked by the first user. To avoid dead locks, avoid using ex... 2007-04-15, 6036👍, 0💬

What is Operator Overloading in .NET
What is Operator Overloading in .NET? It provides a way to define and use operators such as +, -, and / for user-defined classes or structs. It allows us to define/redefine the way operators work with our classes and structs. This allows programmers to make their custom types look and feel like simp... 2007-10-23, 6033👍, 0💬

In What scenarios will you use a DOM parser and SAX parser
In What scenarios will you use a DOM parser and SAX parser? If you do not need all the data from the XML file then SAX approach is much preferred than DOM as DOM can quiet memory intensive. In short if you need large portion of the XML document its better to have DOM. With SAX parser you have to wri... 2007-10-31, 6031👍, 0💬

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, 6029👍, 0💬

What Are the Main Differences between Atom 1.0 and RSS 2.0
What Are the Main Differences between Atom 1.0 and RSS 2.0? - RSS FAQs - Introduction to RSS (Really Simple Syndication) Basics Main differences between Atom 1.0 and RSS 2.0: Atom has separate "summary" and "content" elements, while RSS only has one "description" element. Atom standardizes auto-disc... 2007-05-12, 6027👍, 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, 6025👍, 0💬

Under What Conditions Should You Test set() and get() Methods?
Under What Conditions Should You Test set() and get() Methods? This is a good question for a job interview. It shows your experience with test design and data types. Tests should be designed to target areas that might break. set() and get() methods on simple data types are unlikely to break. So no n... 2008-02-12, 6024👍, 0💬

Can you explain how End points, Contract, Address and Bindings are done in WCF
Can you explain how End points, Contract, Address and Bindings are done in WCF? 2007-11-04, 6024👍, 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, 6024👍, 0💬

Acquiring Locks on Classes
Can a lock be acquired on a class? Yes, a lock can be acquired on a class. This lock is acquired on the class's Class object. 2007-03-03, 6024👍, 0💬

Why Not Just Write a main() Method for Unit Testing?
Why Not Just Write a main() Method for Unit Testing? It is possible to write a main() method in each class that need to be tested for unit testing. In the main() method, you could create test object of the class itself, and write some tests to test its methods. However, this is not a recommended app... 2008-02-06, 6021👍, 0💬

How to dereference a reference
How to dereference a reference? There are a number of ways to dereference a reference: Using two dollar signs to dereference a scalar like: $original = $$strref; Using @ sign to dereference an array like: @list = @$arrayref; Similar for hashes. 2007-11-21, 6021👍, 0💬

What Is the Scope of a Local Variable
What Is the Scope of a Local Variable? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions The scope of a variable can be described with these rules: A variable is valid within the procedure or function where it is defined. A variable is also valid inside a sub procedure or function... 2007-04-21, 6021👍, 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, 6020👍, 0💬

Do session use cookies
How can we make session to not to use cookies ? Left to the user, you will enjoy to find this answer. 2007-10-24, 6019👍, 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, 6017👍, 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, 6017👍, 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, 6014👍, 0💬

Does Perl have reference type?
Does Perl have reference type Yes. Perl can make a scalar or hash type reference by using backslash operator. For example: $str = "here we go"; # a scalar variable $strref = \$str; # a reference to a scalar @array = (1..10); # an array $arrayref = \@array; # a reference to an array Note that the ref... 2007-11-20, 6012👍, 0💬

Relation between HTML and the Web
What Is the Relation between HTML and the Web? The Web is a publisher technology based on the Internet to allow publishers to publish hyper linked documents to be viewed by Internet users. HTML is the language that used to compose those hyper linked documents. In another word, HTML is the technical ... 2007-03-03, 6012👍, 0💬

fork()
main() { int i = 2; int ret_val; while(i > 0) { ret_val = fork(); if (ret_val==0) { printf(“In child %d. \n”, i); } else{ printf(“In parent %d. \n”, i);} i=i-1; } } } The logic of this code looks clear. But what is the question? 2009-04-19, 6011👍, 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, 6010👍, 0💬

How to implement DTC in .NET
How to implement DTC in .NET ? DTC is implemented using COM+. Following are the steps to implement COM + in .NET :- ã gEnterpriseServiceh namespace has all the classes by which we can implement DTC in .NET. You have to add reference gEnterpriseServiceh namespace. omits it all together, then w... 2007-10-22, 6007👍, 0💬

What Is Wrong with My &lt;br&gt; Tags
What Is Wrong with My &lt;br&gt; Tags? - XHTML Tutorials - Introduction To Tag and Attribute Syntax If you are used HTML syntax, you may write your &lt;br&gt; tags as in the paragram below: &lt;p&gt; I love the way you look at me,&lt;br&gt; Your eyes so bright and blu... 2007-05-12, 6007👍, 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