Question

Given the following code namespace globalType { void.printResult(): } which of the following statements is needed to access printResult? a. globalType.printResult(): b. globalType:: printResult: c. globalType.printResults(): d. globalType: printResult(): Consider the following statements: struct rectangleData { double length: double width: double area: double perimeter: }: rectangleData bigRect: Which of the following statements is valid in C++? a. cin > > bigRect:: length: b. cout < < bigRect.length: c. cout < < bigRect: d. cout < < length: What is the output of the following statements. String str1 = "John" string str2 = "Smith is taking CSC2000": str2.replace (0, 5, str1): cout str2: a. John is taking CSC2000 b. John Smith is taking CSC2000 c. John is taking CSC2000 d. is taking CSC2000 A member function of a class that modifies the value(s) of the data member(s) is called a(n) ______ function a. accessor b. mutator c. constructor d. destructor

Answer 1

22 b

a function in any namespace can be accessed in the form of mynamespace::myfunction

example

std::cout << "Dummy\n"; 

example::dummy();

23 b

structure elements can be accessed using dot or an arrow.

in this case it is accessed as bigRect.length

if bigRect was a pointer variable, then the members are accessed as bigRect->length or (*bigRect).length

24 c

0 is the first position in str2 which is S

5 is the number of characters to replace, which is Smith

when str1 replaces you get the answer as mentioned in c.

25 b

accessor functions are those functions that are used to access member variables.

mutator functions are those functions that are used to modify member variable values.

eg. myclass m

class Toto{
 private :
  int _age;

 public :
  void SetAge(int);
  int GetAge(); 

};

void Toto::SetAge(int age){
 _age = age;
}

int  Toto::GetAge(){
return  _age;
}

SetAge is a mutator

GetAge is a accessor

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