Question

In C++ Language:

In the following problems assume the iostream library has been included and that you are using the namespace std.

1. Define a struct for a recreational vehicle with the following members: year (int), length (float), width (float), height (float), weight (float), make (string), model (string), luxuryStyling (bool), color (string), retailPrice (float).

2. Consider the following statements. Although it may be confusing, it is legal to have name as the identifier of a one struct and separately as a member inside of the course struct.

     struct name

     {

           string first;

           string last;

     };

     struct course

     {

           char name[50];

           int callNum;

           int credits;

           char grade;

     };

     struct student

     {

           name studentName;

           int id;

           course courses[10];

     };

     student cs_student;

     student classList[100];

     course cs_course;

     name a_name;

Mark the following statements as valid or invalid. If a statement is invalid, explain why it your own words (compiler error messages are not acceptable).

a. name.last = "Hoa";

Answer:

b. cin >> cs_student.studentName;

Answer:

c. classList[0] = studentName;

Answer:

d. classList[1].id = 36701;

Answer:

e. a_name = classList[15].studentName;

Answer:

f. cs_student.studentName = a_name;

Answer:

g. cout << classList[10] << endl;

Answer:

h.     for (int j = 0; j < 100; j++)

           classList[j].studentName = a_name;

Answer:

Answer 1

//question 1
struct recreational_vehicle
{ int year;
float length,width,height,weight,retailPrice;
string make,model,color;
bool luxuryStyling;
};
//question 1 ends

//question 2

a. name.last = "Hoa"; is invalid
because name is struct, we can not access struct varible by struct name
we can access using struct varible, hence, correct one is
a_name.last="Hoa";
name.last = "Hoa";
  
cin >> cs_student.studentName; is invalid
because cs_student.studentName is of type struct name
cin is used to taking basic input types like int,float,double,string etc;
cin can not directly take struct name type
cin >> cs_student.studentName;
  
classList[0] = studentName; is invalid
because classList[0] is of type struct student
'studentName’ was not declared in this scope
studentName is of type struct name;
classList[0] = studentName;
  

classList[1].id = 36701; is valid;
classList[1].id is int and 36701 is int;
  
a_name = classList[15].studentName; is valid
a_name is type struct name
classList[15].studentName is type struct name;
  
  
cs_student.studentName = a_name; is valid
cs_student.studentName is type struct name
a_name is type struct name
  

cout << classList[10] << endl; is invalid
cout is used to print basic input types like int,float,double,string etc;
cout can not directly print struct name type
  
for (int j = 0; j < 100; j++)
classList[j].studentName = a_name; is valid
a_name is type struct name
classList[j].studentName is type struct name;