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Explain the scope and visibility of variables in c plus plus function?
If you define a variable inside of your function, the variable can be referred and used only inside of that function. It means that you will not able to use the variable in another function (including main). Area of code where your variable can be used after declaration is usually called visibility of the variable.
What is use of keyword extra in c plus plus programming?
Nothing.
What is a primitive type variable in c plus plus?
same the types used in C. that is int...char...float...
What is the difference between instantiation and initialization in C plus plus?
Instantiation is creating the instance of the variable/object . While Initialization is to provide the variable with some value. int i; // i is an instance of an integer i=10; //initialised with the value 10
What makes for a good or bad variable name in C plus plus programming languages?
A good variable name is one that is clear, related to the data it stores. Also, you should try to avoid confusions with other variables.
