Answer to Question #249513 in C++ for Elena

Question

Write a program to create a class called STUDENT with data members Roll

Number, Name and Age. Using inheritance, create the classes

UGSTUDENT and PGSTUDENT having fields a semester, fees and

stipend. Enter the data for at least 5 students. Find the average age for all

UG and PG students separately.

Answer 1

#include<iostream> 
#include<conio.h>
using namespace std; 
class student 
{ 
 public:  int R,A; 
            char N[20]; 
            void take_data(); 
}; 


class ugstudent:public student 
{ 
 public:  int stip,semester; 
            float fee; 
           void take_data(); 
}; 




class pgstudent:public student 
{ 
 public:  int stip,semester; 
            float fee; 
           void take_data(); 
}; 
void student::take_data() 
{ 
 cout<<"\nInput name:"; 
 cin>>N; 
 cout<<"\nInput Reg.no."; 
 cin>>R; 
 cout<<"\nInput age:"; 
 cin>>A;  
 }
void ugstudent::take_data() 
{ 
 student::take_data(); 
 cout<<"\nInput the semester:"; 
 cin>>semester; 
 cout<<"\nInput the fees:"; 
 cin>>fee; 
 cout<<"\nInput the stipend:"; 
 cin>>stip; 
} 
 
void pgstudent::take_data() 
{ 
 student::take_data(); 
 cout<<"\nInput the semester:"; 
 cin>>semester; 
 cout<<"\nInput the fees:"; 
 cin>>fee; 
 cout<<"\nInput the stipend:"; 
 cin>>stip; 
} 


int main() 
{ 
 ugstudent ug[20]; 
 pgstudent pg[20]; 
 int x,y,m; 
 float average; 
 cout<<"\nInput the number of entries in the ugstudent class:"; 
 cin>>y; 
 for(x=1;x<=y;x++) 
 ug[x].take_data(); 
 for(int semester=1;semester<=8;semester++) 
 { 
 float add=0; 
 int get=0,count=0; 
 for(x=1;x<=y;x++) 
 { 
 if(ug[x].semester==semester) 
 { 
 add=add+ug[x].A; 
 get=1;
   count++;  } 
 } 
 if(get==1) 
 { 
 average=add/count; 
 cout<<"\nAverage age of semester "<<semester<<" is: "<<average;  } 
 } 
 cout<<"\ninput the number of entries of pgstudent class:"; 
 cin>>y; 
 for(x=1;x<=y;x++) 
 pg[x].take_data(); 
 for(int semester=1;semester<=8;semester++) 
 { 
 float add=0; 
 int get=0,count=0; 
 for(x=1;x<=y;x++) 
 { 
 if(pg[x].semester==semester) 
 { 
 add=add+pg[x].A; 
 get=1; 
 count++; } 
 } 
 if(get==1) 
 { 
 average=add/count; 
 cout<<"\Average age of Semester "<<semester<<" is "<<average; } 
 } 
 getch(); 
}