What does the term immutable mean?

Whenever the value of the variable is changed , a new object will be created.

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Can you store multiple data types in System.Array?

No.

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What is a Nested Master Page ?

A nested Master page is one master page referring another master page.

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what is the use of the Environment.Exit() method?

Terminates the program and gives the return value to os as exit code.

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what is the use of Application.Exit() method?

Notifies all message loops to quit, closes windows opened by them and closes program.

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Daily Tips- Tip #44 - How to exit c# applications?

You can exit using the following 2 static methods,
1. Environment.Exit(returnval)
2. Application.Exit()

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Daily Tips- Tip #43 - What is the use of checked keyword in c# ?

it is used to apply range checking to an operation.

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