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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, 5972👍, 0💬

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, 5969👍, 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, 5968👍, 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, 5967👍, 0💬

How To Omit Columns with Default Values in INSERT Statement
How To Omit Columns with Default Values in INSERT Statement? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If you don't want to specify values for columns that have default values, or you want to specify values to columns in an order different than how they are defined, you c... 2007-05-11, 5967👍, 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, 5963👍, 0💬

How does the race condition occur
How does the race condition occur? It occurs when two or more processes are reading or writing some shared data and the final result depends on who runs precisely when. 2007-11-11, 5962👍, 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, 5960👍, 0💬

How To End the Current Transaction
How To End the Current Transaction? - MySQL FAQs - Transaction Management: Commit or Rollback There are several ways the current transaction can be ended implicitly or explicitly: In "Autocommit On" mode, a single-statement transaction will be ended implicitly when the execution of the statement end... 2007-05-11, 5957👍, 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, 5956👍, 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, 5951👍, 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, 5950👍, 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, 5947👍, 0💬

What is GAC ?
.NET INTERVIEW QUESTIONS - What is GAC ? (What are situations when you register .NET assembly in GAC ?) GAC (Global Assembly Cache) is used where shared .NET assembly reside. GAC is used in the following situations :- * If the application has to be shared among several application. * If the assembly... 2010-03-16, 5946👍, 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, 5946👍, 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, 5945👍, 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, 5944👍, 0💬

Is XML case sensitive
Is XML case sensitive? Yes, they are case sensitive. 2007-10-31, 5944👍, 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, 5944👍, 0💬

Give a small brief explanation of all Elements in activity diagrams
Give a small brief explanation of all Elements in activity diagrams? Action State : It is a type of state that has an internal action and one outgoing event that would complete the internal action. State : It is a condition when following events occur: Object satisfies a condition. performs a action... 2007-10-26, 5942👍, 0💬

How can you cache different version of same page using ASP.NET cache object ?
.NET INTERVIEW QUESTIONS - How can you cache different version of same page using ASP.NET cache object ? Output cache functionality is achieved by using “OutputCache” attribute on ASP.NET page header. The syntax is as follows:- &lt;%@ OutputCache Duration="20" Location="Server" VaryByParam="stat... 2009-05-19, 5940👍, 0💬

Explain Different elements of a collaboration diagram
Explain Different elements of a collaboration diagram ? Classifier Role :It classifies a role.br> Association Role : It shows the relation between two classifier roles.br> Multi-Object : It used to show operation related to entire set of objects rather than on a single object.br> Constraint : Condit... 2007-10-26, 5940👍, 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, 5940👍, 0💬

Under What Conditions Should You Not Test Get() and Set() Methods?
Under What Conditions Should You Not Test Get() and Set() Methods? The JUnit FAQ provides a good answer to this question: Most of the time, get/set methods just can't break, and if they can't break, then why test them? While it is usually better to test more, there is a definite curve of diminishing... 2008-02-19, 5939👍, 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