Features of.net Language independent Object oriented program Multi threading Exception handling Drag and drop Linq

Explain static void main(string[] args)

Naming Convention

Console Write () writeLine() Read() ReadLine() ReadKey()

Conversions Int32.Parse or (Convert.ToInt32) Single.Parse

Control structures 3 types Selection or Decision Loops or Iterate Branching or Jumping

Selection or Decision ifif-elsenested if switch-case

if

if-else condition falsetrue else block if block

nested if Condition 1 Condition 2 Condition-n statements false true 10

switch-case case 1 case 2 case 3 matched unmatched Statements 1 Statements 2 Statements 3 matched unmatched

Loops or Iterate for while do – while for each

Branching or Jumping break continuereturn goto 13

Array Definition Advantage Types Syntax Length property

String Definition Construct ways Length property Methods

Object Oriented Program System

What is abstraction? Implementation hiding 17

What is Encapsulation Data hiding Security Initialization of instance fields 18

What is Inheritance Syntax Advantage Relationship Disadvantage Keyword Access specifier Types 19

Polymorphism Types How to achieve Advantages of both 20

Constructor Definition Rule Use When it is executed Types Syntax

Destructor Definition Use When it is executed Syntax

Method Overloading Definition Advantage Ways- No. of arguments Type of arguments

static What it is Where it is used( V-M-C)

partial What it is Where it is used-class

Inheritance Definition Syntax Advantage Relationship Disadvantage Access specifier Types

Method hiding Keywords -new in child class

Method Overriding keywords -virtual -override Advantage Rule

base What it is When it is use

const What it is Advantage When it is happened

readonly What it is Advantage When it happened

Difference b/w const & readonly

Passing parameters b/w methods Value ref (keyword) out (keyword)

Difference b/w ref and out

abstract What it is Where When Keywords – abstract - override

sealed What it is Where it is use(C) Purpose

Interface Definition Advantage to achieve Syntax Keyword-interface

Properties Definition Keywords-set -get -value After 3.5 how

Difference b/w method & property

Array What it is Where it is namespace Purpose Methods

Random What it is Where it is namespace Use Method –r.next(1,100)

Generics Definition Advantage How many ways

Collections Definition Advantage Types –List /ArrayList

Exception handling What purpose without –with Definition Keywords Types

Multithreading Definition Ways program exec Advantage Namespace Class Lifecycle

Fileinfo What it is Namespace Advanatage

Driveinfo What it is Namespace Advanatage

StreamWriter What it is Namespace Advanatage

StreamReader What it is Namespace Advanatage