1.

Explain the impact of access modifier const over variables. Support your answer with examples. 

Answer»

The access modifier const can be added to the declaration of an object to make that object a constant rather than a variable. Thus, the value of the named constant cannot be altered during the program run whereas the value of the variable can be changed during the program run.

Example:

void main ()  {

const int a =10;

int b = 20;

a++;

cout<<"a="<<a;

b++;

cout<<"b="<<b;

}



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