Answer / Pawan Kumar Sahu

Global variables are declared outside of any function. For variable declaration, you can simply write `extern type variableName;`, but for initialization, use `extern type variableName = value;` in a .cpp file.

What do you mean by “this” pointer?

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When volatile can be used?

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Do class declarations end with a semicolon? Do class method definitions?

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Write a program to get the value of sin (x) using a library function , when x is given in degrees.

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What are associate containers?

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How do I download c++?

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If a round rectangle has straight edges and rounded corners, your roundrect class inherits both from rectangle and from circle, and they in turn both inherit from shape, how many shapes are created when you create a roundrect?

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What is expression parser in c++

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