Abs C# example

C#  > System > Math class > Abs

Abs returns the absolute value of a number.

Example:

int i = -32;
int j = Math.Abs(i); // 32

Math class C#

C#  > System > Math class

Math is a static class which contains constants and methods mathematical functions.

• Round
• Abs
• Pow

System namespace in C#

C# > System Namespace

System namespace in C# contains fundamental classes and base classes.

• GUID
• Math class
• Interfaces
• Predicate delegate
• ComponentModel
• String
• DateTime
• Environment
• Dynamic
• Func
• Reflection
• TimeSpan
• Convert
• BitConverter

Guid, NewGuid C# example

C#  > System > Guid

Guid is globally unique identifier and stored on 128 bit integer.
The probability to be duplicated over networks and computers is very low.

Example
1. Use NewGuid method to get a new guid.
  Guid g = Guid.NewGuid();

Call Stack Window Microsoft Visual Studio

Visual Studio > Call Stack Window

Using the Call Stack Window  you can view the function calls that are currently on the stack.
To open Call Stack Window click on
DEBUG > Windows > Call Stack

Foreach in C# example

C# > Statements > foreach, in

Foreach iterates through the collection . It can be exited by the goto, return, or throw.
Note: Cannot be used to add or remove items from the collection to avoid unpredictable side effects

Example

int[] intarray = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

foreach (int el in intarray)

{

MessageBox.Show(el.ToString()); 

}

C# Statements

C# > Statements

Statements are executed in sequence and are program instructions

Selection

• switch

Iteration

• while
• foreach in

Jump

• break

Namespace

• using