#include <iostream.h>#include <string.h>class Student{ public: Student( char *pName) { cout<<“Constructing student “<<pName<<endl; strncpy( name, pName, sizeof(name) ); name[sizeof(name)-1]=‘\0’; semesterHours=0; gpa=0.0; } ~Student() { cout<<“Destructing “<<name<<endl; } protected: char name[40]; int semesterHours; float gpa;};void main(){ Student s(“Danny”);}

Overloading of constructors is allowed—In the same class, you may have several constructors with different argumentsOverloading of destructors is of course not allowed (why?)

#include <iostream.h>#include <string.h>class Student{ public: Student() { semesterHours=0; gpa=0.0; name[0]=‘\0’; Student( char *pName ) { strncpy( name, pName, sizeof(name) ); name[sizeof(name)-1]=‘\0’; semesterHours=0; gpa=0.0; }

Student( char *pName, int xfrHours, float xfrGPA ) { strncpy( name, pName, sizeof(name) ); name[sizeof(name)-1]=‘\0’; semesterHours=xfrHours; gpa=xfrGPA; } ~Student() { cout<<“Destructing students\n”; } protected: char name[40]; int semesterHours; float gpa;};

int main(){ Student noName; Student freshman( “Smell E. Fish” ); Student xfer( “Upp R. Classman”, 80, 2.5 ); return 0;}

#include <iostream.h>#include <string.h>class Student{ public: Student( char *pName=“no name”, int xfrHours=0, float xfrGPA=0.0 ) { strncpy( name, pName, sizeof(name) ); name[sizeof(name)-1]=‘\0’; semesterHours=xfrHours; gpa=xfrGPA; } ~Student() { cout<<“Destructing students\n”; } protected: char name[40]; int semesterHours; float gpa;};void main(){ Student noName; Student freshman( “Smell E. Fish” ); Student xfer( “Upp R. Classman”, 80, 2.5 );}

#include <iostream.h>#include <string.h>class StudentId{ public: StudentId( int id=0 ) { value=id; cout<<“Assigning student id “<<value<<endl; } protected: int value; };class Student{ public: Student( char *pName=“no name”, int ssId=0 ) { cout<<“Constructing student “<<pName<<endl; strncpy( name, pName, sizeof(name) ); name[sizeof(name)-1]=‘\0’; StudentId id(ssId); } protected: char name[40]; StudentId id;};

int main(){ Student s(“Randy”, 1234); cout<<“This message from main\n”; return 0;}

Output: Assigning student id 0 Constructing student Randy Assigning student id 1234 Destructing id 1234 This message from main Destructing id 0

class Student{ public: Student( char *pName=“no name”, int ssId=0 ) : id(ssId) { cout<<“Constructing student “<<pName<<endl; strncpy( name, pName, sizeof(name) ); name[sizeof(name)-1]=‘\0’; } protected: char name[40]; StudentId id;}

Output: Assigning student id 1234 Constructing student Randy This message from main Destructing id 1234