ASP.NET Lecture Series

1. Prof. Neeraj Bhargava
Pramod Singh Rathore
Department of Computer Science
School of Engineering & System Sciences,
MDS University Ajmer, Rajasthan, India
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Basics of Web Programming using
ASP.NET

2. Session Objectives
 Character Set
 Token –
 Keyword
 Identifier
 Literals
 Punctuators
 Operators
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3. Character Set
 It is a set of valid characters that a language can
recognize
 A character represent any letter, digit etc
 Eg :
 Letters A-Z, a-z
 Digit 0-9
 Special symbol: +,-,?,*
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4. Token
 Smallest individual unit is a program is known as token
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5. Token
 Keyword
 Are reserved word in a program
 E.g. for, if-else, void , main etc
 Identifiers
 Names given to different parts of the program like for variables
, objects, classes, function , array, etc
 Valid identifier : MyFile, _Rollno
 Invalid identifier : 3Myfile, my.file
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6. Token
 Literals
 Or constant which never change their value during the program
run
 Integer Constant : 7,100,9
 Character Constant : ‘c’ , ’d’
 Real Constant : 7.0 ,8.9
 String Constant : “psr”
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7. Token
 Operators
 Do some computation when applied to variables
 Eg : a=c+d
 Airthematic operator : + , - , / ,%
 Logical Operator : &&, ||
 Assignment Operator : =, <= , >=
 Relational Operator : < , >
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8. Data Types and Variable
 Variable are used to store piece of information
 Student _Name
 Data types are used to declare the type of variable
 int
 Float
 String
 Char
 bool
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9. Assignment 2
 Describe Character Set
 Explain Token with suitable example ?
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10. Queries ????
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