Summary Programming with C# (CS107.3)

C# Note
Note

“Hello world”

• Console.WriteLine()
Vs
• Console.Write()
• Console.ReadLine()
Or
• Console.ReadKey() -
for avoid closing the
Console application suddenly.




Data Types
• The data type tells the C# compiler what kind of value a variable can hold.

• C# includes many in-built data types for different kinds of data, e.g. String,
int, double, char, bool, etc.




1

, Data Types & Variable Declaration




Displaying Variables on Console Application




Getting String Input from User




2

,Getting Integer Input from User (I)




Getting Integer Input from User (II)




3

, Basic Operators
• An Operator is a symbol that tells the compiler to perform specific
mathematical or logical manipulations.

• C# has rich set of built-in operators and provides the following type of
operators.

1) Arithmetic Operators
2) Relational operators
3) Logical Operators
4) Assignment Operators


C# Loops
• There may be situation, when you need to execute a block of code several
number of times.

• In general, the statements are executed sequentially; The first statement in
a function is executed first, followed by the second and so on.

• C# provides following types of loops to handle looping requirement.

01. while loop

02. for loop

03. do while loop.

04. nested loops




4