Q:
What do you understand by regular expressions in C#? Write a program that searches a string using regular expressions
belongs to collection: C# Interview Questions and Answers,You Need To Know
C# Interview Questions and Answers,You Need To Know
- What is C#?
- What is an object in c#?
- What are C# attributes and their significance?
- What is the meaning of instantiation in c#?
- How will you differentiate between a Class and a Struct in c#?
- What is the difference between public, static, and void in c#?
- What’s a multicast delegate in c#?
- How do I calculate someone’s age in C#?
- What is the difference between public static, public and static methods in c#?
- What is a Virtual Method in C#?
- List down the fundamental OOP concepts in c#?
- Compare Virtual methods and Abstract methods in c#
- What are Namespaces in C#?
- Is every abstract function virtual in C#, in general?
- What are I/O classes in C#? Define some of the most commonly used ones
- What is the difference between SessionState and ViewState in c#?
- What’s the difference between a method and a function in c#?
- What is the difference between an abstract function and a virtual function in c#?
- What is an interface class? Give one example of it
- What is the advantage of interface class?
- Explain the process of inheriting a class into another class?
- What is the difference between an interface and abstract class?
- What are circular references?
- What is the advantage of abstract class?
- What happens if the inherited interfaces have conflicting method names?
- What is Constructor in C#?
- Explain some points related to the constructor?
- What is difference between “is” and “as” operators in c#?
- Why can’t you specify the accessibility modifier for methods inside the interface?
- What are Value types and Reference types in C#?
- What are Jagged Arrays in c#?
- Is elements of jagged array must be initialized before its use
- Why Doesn’t C# Allow Static Methods to Implement an Interface?
- What do you understand by regular expressions in C#? Write a program that searches a string using regular expressions
- What is the difference between ref & out parameters in c#?
- What is the difference between var and dynamic in C#
- What is the use of ‘using’ statement in C#?
- What is the major use of ‘using’ keyword in c#?
- What is the difference between String and string in C#?
- What is function overloading in c#?
- Explain some ways of doing overloading function in C#
- What is serialization?
- Explain Inheritance in C# with an example?
- What is the best way to give a C# auto-property an initial value?
- List down the reason behind the usage of C# language
- What are Custom Exceptions?
- What is Managed or Unmanaged Code in c#?
- Explain the features of C#?
- What is the difference between constant and readonly in C#?
- Can we use “this” command within a static method?
- Explain Deadlock?
- illustrate Race Condition?
- What is Thread Pooling?
- Distinguish between finally and finalize blocks?
- What is Boxing and Unboxing in C#?
- What is enum in C#?
- Describe Accessibility Modifiers in C#
- What is the difference between ‘protected’ and ‘protected internal’?
- How do short-circuited operators work?
- What is the “volatile” keyword used for?
- Why do we use Async and Await in C#?
- Explain different states of a thread in C#?
- What are delegates?
- What is the difference between “continue” and “break” statements in C#?
- What can you tell us about the XSD file in C#?
- What are Custom Control and User Control?
- What are sealed classes in C#?
- What is the difference between Array and Arraylist?
- Can a private virtual method can be overridden?
- What are Properties in C#?
- What are accessors?
- What are the differences between System.String and System.Text.StringBuilder classes?
- Why Properties are introduced in C#?
- What is the difference between the dispose and finalize methods in C#?
- What are partial classes?
- What’s the difference between the System.Array.CopyTo() and System.Array.Clone() ?
- What are the advantages of partial classes?
- What is the difference between late binding and early binding in C#?
- What are the differences between IEnumerable and IQueryable?
- What is Reflection in C#?
- Give an example of removing an element from the queue?
- What is the difference between directcast and ctype?
- How to implement a singleton design pattern in C#?
- What is the difference between the “throw” and “throw ex” in .NET?
- List down the commonly used types of exceptions in .net?
- How can we sort the elements of the Array in descending order?
- What is a Hashtable in C#?
- What is Multithreading with .NET?
c# programming
A regular expression is a template for matching a set of input. It can consist of constructs, character literals, and operators. Regex is used for string parsing, as well as replacing the character string. Following code searches a string “C#” against the set of inputs from the languages array using Regex:
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