Answer to Question #282518 in C++ for Mohit

Question

Create a class named “student” that contains roll_number, stu_name and course_name,

father_name, DOB as data member and Input_student and display_student as member functions.

Create a Derived class named “exam” from the class named “student” with publicly inherited

mode. The derived class contains members as mark1,mark2,mark3 as marks of three subjects and

input_marks and display_results as member functions. Create an array of object of the “exam”

class and display the result of 10 students.

Answer 1

class student
 {
 public: int rno;
 char name[20];
 int m1,m2,m3;
 public:
 void details()
 {
 cout<<“\nROLL_NO NAME MARKS THREE SUBJECT \n”;
 cin>>rno>>name>>m1>>m2>>m3;
 }
 void details(int nm)
 {
 cout<<“\nDetails of ONE student :\n”;
 cout<<“\nROLL_NO\tNAME\tMARK1\tMARK2\tMARK3 \n”;
 cout<<“=====================================\n” ;
 cout<<nm<<“\t”<<name<<“\t”<<m1<<“\t”<<m2<<“\t”<<m3<<endl<<“\n\n”;
 }
 void details(char*)
 {
 cout<<rno<<“\t”<<name<<“\t”<<m1<<“\t”<<m2<<“\t”<<m3<<endl;
 }
 };
 void main()
 {
 int rn,i,n;
 stud s[20];
 clrscr();
 cout<<“How many student inform: \n”;
 cin>>n;
 for(i=0;i<n;i++)
 {
 s[i].details();
 }
 cout<<“Enter the roll number:\n “;
 cin>>rn;
 for(i=0;i<n;i++)
 {
 if(rn==s[i].rno)
 {
 s[i].details(rn);
 }
 }
 cout<<“Details of all student: \n”;
 cout<<“ROLL_NO\tNAME\tMARK1\tMARK2\tMARK3 \n\n”;
 cout<<“=====================================\n” ;
 for(i=0;i<n;i++)
 {
 s[i].details(s[i].name);
 }
 getch();
 }