prowessapps.in Inheritance Programs in C++

#include< iostream>
using namespace std;
class Student {
 public:
 string name;
 int roll;
 Student() {
  cout<<"Default Const of Student\n";
  }
};
class Marks : public Student {
 public :
 int m1,m2,m3;
 Marks(){
  cout<<"Default Const of Marks\n";
 }
};
class Result : public Marks {
 public:
 int total;
 float per;
 Result() { 
  cout<<"Const. of Result "<< endl;
 }
 void input(){
  cout<<"Enter name of Student ";
  getline(cin,name);
  cout<<"Enter the roll no. ";
  cin>>roll;
  cout<<"Enter Marks of 3 subjects ";
  cin>>m1>>m2>>m3;
  cin.ignore(1,'\n');
 }
 void display() {
  total = m1+m2+m3;
  per = (m1+m2+m3)/3.0;
  cout<< name<<"\t"<< roll<<"\t";
  cout<< total<<"\t"<< per<< endl;
 }
};
int main() {
 Result s[5];
 for(int i = 0; i<5; i++) {
  s[i].input();
 }
 for(int i = 0; i<5; i++) {
  s[i].display();
 }
 return 0;
 }
OUTPUT
Default Const of Student
Default Const of Marks
Const. of Result
Default Const of Student
Default Const of Marks
Const. of Result
Default Const of Student
Default Const of Marks
Const. of Result
Default Const of Student
Default Const of Marks
Const. of Result
Default Const of Student
Default Const of Marks
Const. of Result
Enter name of Student Alok
Enter the roll no. 12
Enter Marks of 3 subjects 90 90 90
Enter name of Student Deepak
Enter the roll no. 23
Enter Marks of 3 subjects 85 85 85
Enter name of Student Ayan
Enter the roll no. 34
Enter Marks of 3 subjects 99 99 99
Enter name of Student Dan
Enter the roll no. 67
Enter Marks of 3 subjects 87 78 65
Enter name of Student Dan
Enter the roll no. 56
Enter Marks of 3 subjects 50 50 50
Alok    12      270     90
Deepak  23      255     85
Ayan    34      297     99
Dan     67      230     76.6667
Dan     56      150     50

#include< iostream>
using namespace std;
class Student {
 public:
 string name;
 int roll;
 Student() {
  cout<<"Default Const of Student\n";
 }
};
class Marks : virtual public Student {
 public :
 int m1,m2,m3;
 Marks(){
  cout<<"Default Const of Marks\n";
 }
};
class Sports:virtual public Student {
 public :
 int grade;
 Sports() {
  cout<<"Default Cons. of Sport\n";
 }
};
class Result : public Marks, public Sports {
 public:
 int total;
 float per;
 Result() { 
  cout<<"Const. of Result\n";
 }
 void input(){
  cout<<"Enter name of Student ";
  getline(cin,name);
  cout<<"Enter the roll no. ";
  cin>>roll;
  cout<<"Enter Marks of 3 Subjects";
  cin>>m1>>m2>>m3;
  cout<<"Enter the marks of Sports";
  cin>>grade;
  cin.ignore(1,'\n');
 }
 void display() {
  total = m1+m2+m3+grade;
  per = (m1+m2+m3+grade)/4.0;
  cout<< name<<"\t"<< roll<<"\t";
  cout<< total<<"\t"<< per<< endl;
  
 }
};
int main() {
 Result s[5];
 for(int i = 0; i<5; i++) {
  s[i].input();
 }
for(int i = 0; i<5; i++) {
  s[i].display();
 }
 return 0;
}
OUTPUT
Default Const of Student
Default Const of Marks
Default Cons. of Sport
Const. of Result
Default Const of Student
Default Const of Marks
Default Cons. of Sport
Const. of Result
Default Const of Student
Default Const of Marks
Default Cons. of Sport
Const. of Result
Default Const of Student
Default Const of Marks
Default Cons. of Sport
Const. of Result
Default Const of Student
Default Const of Marks
Default Cons. of Sport
Const. of Result
Enter name of Student Ashok
Enter the roll no. 11
Enter Marks of 3 Subjects 78 79 80
Enter the marks of Sports75
Enter name of Student Alok
Enter the roll no. 90 
Enter Marks of 3 Subjects 90 90 90 
Enter the marks of Sports95
Enter name of Student Ayan
Enter the roll no. 23
Enter Marks of 3 Subjects 99 99 99
Enter the marks of Sports99
Enter name of Student Dan
Enter the roll no. 34
Enter Marks of 3 Subjects 78 98 96
Enter the marks of Sports93
Enter name of Student Arif
Enter the roll no. 45
Enter Marks of 3 Subjects 87 96 90
Enter the marks of Sports99
Ashok   11      312     78
Alok    90      365     91.25
Ayan    23      396     99
Dan     34      365     91.25
Arif    45      372     93

#include< iostream>
using namespace std;
class Shape {
int ar;
 public:
 void areaCircle(int a) {
  ar = 3.14*a*a;
  cout<<"Area of Circle = "<< ar<< endl;
 }
 void areaRec(int a, int b) {
  ar = a*b;
  cout<<"Area of Rectangle "<< ar<< endl;
 }
 void areaTri(int a, int b) {
  ar = a*b/2;
  cout<<"Area of Triangle "<< ar<< endl;
 }
};
class Rectangle :public Shape {
 public :
 int l,b;
 void input() {
  cout<<"Enter Length , Breadth : ";
  cin>>l>>b;
  areaRec(l,b);
 }
};
class Circle : public Shape {
 public:
 int r;
 void input() {
  cout<<"Enter Radius : ";
  cin>>r;
  areaCircle(r);
 }
};
class Triangle : public Shape {
 public :
 int b,h;
 void input() {
  cout<<"Enter Base,Height : ";
  cin>>b>>h;
  areaTri(b,h);
 }
};
int main() { 
 Rectangle r;
 r.input();
 Triangle t;
 t.input();
 Circle c;
 c.input();
 return 0;
}
OUTPUT
Enter Length , Breadth : 4 5
Area of Rectangle 20
Enter Base,Height : 5 4
Area of Triangle 10
Enter Radius : 7
Area of Circle = 153

#include< iostream>
using namespace std;
class Shape {
 public:
 virtual void area() = 0;
};
class Rectangle : public Shape {
 public:
 int l,b,ar;
 void area() {
  cout<<"Enter Length, Breadth ";
  cin>>l>>b;
  ar = l*b;
  cout<<"Area of Rectangle = "<< ar; 
  cout<< endl;
 }
};
class Triangle : public Shape {
 public:
 int h,b,ar;
 void area() {
  cout<<"Enter Height, Base ";
  cin>>h>>b;
  ar = h*b/2;
  cout<<"Area of Triangle = "<< ar;
  cout<< endl;
 }
};
class Circle : public Shape {
 public:
 int r,ar;
 void area() {
  cout<<"Enter Radius ";
  cin>>r;
  ar = 3.14*r*r;
  cout<<"Area of Circle = "<< ar;
  cout<< endl;
 }
};
int main() {
 Rectangle r;
 r.area();
 Triangle t;
 t.area();
 Circle c;
 c.area();
 return 0;
}
OUTPUT
Enter Length, Breadth 4 3
Area of Rectangle = 12
Enter Height, Base 6 8
Area of Triangle = 24
Enter Radius 7
Area of Circle = 153

#include< iostream>
using namespace std;
class Media {
 public :
 string title;
 int price;
 virtual void input() = 0;
 virtual void display() = 0;

};
class Book : public Media {
 public:
 int page;
 void input() {
  cout<<"Enter Title of Book: ";
  getline(cin,title);
  cout<<"Enter Price: ";
  cin>>price;
  cout<<"Enter No. of Page: ";
  cin>>page;
  cin.ignore(1,'\n');
 }
 void display() {
  cout<<"Information of Book\n";
  cout<<"Title - "<< title<< endl;
  cout<<"Price - "<< price<< endl;
  cout<<"Pages - "<< page<< endl;
  }
};
class Tape:public Media {
 public : 
 int r;
 void input() {
  cout<<"Enter Title of Tape: ";
  getline(cin,title);
  cout<<"Enter Price: ";
  cin>>price;
  cout<<"Enter Run Time in Min: ";
  cin>>r;
  cin.ignore(1,'\n');
 }
 void display() {
  cout<<"Information of Tape\n";
  cout<<"Title - "<< title<< endl;
  cout<<"Price - "<< price<< endl;
  cout<<"Run Time - "<< r<<" min\n";
  }	
};
class CD : public Media {
 public : 
 int cap;
 void input() {
  cout<<"Enter Title of CD: ";
  getline(cin,title);
  cout<<"Enter Price: ";
  cin>>price;
  cout<<"Enter Capacity in GB: ";
  cin>>cap;
 }
 void display() {
  cout<<"Information of CD\n";
  cout<<"Title - "<< title<< endl;
  cout<<"Price - "<< price<< endl;
  cout<<"CAPACITY- "<< cap<<" GB\n";
  }	
};
int main() {
 Media *m = new Book();
 Media *m2 = new Tape();
 Media * m3 = new CD;
 m->input();
 m2->input();
 m3->input();
 m->display();
 m2->display();
 m3->display();
 return 0;
}
OUTPUT
Enter Title of Book: Java
Enter Price: 400
Enter No. of Page: 234
Enter Title of Tape: Song
Enter Price: 30
Enter Run Time in Min: 120
Enter Title of CD: Panasonic
Enter Price: 20
Enter Capacity in GB: 1
Information of Book
Title - Java
Price - 400
Pages - 234
Information of Tape
Title - Song
Price - 30
Run Time - 120 min
Information of CD
Title - Panasonic
Price - 20
CAPACITY - 1 GB

#include< iostream>
using namespace std;
class Employee {
 public :
 string name,doj;
 int id;
 void input() {
 cout<<"Enter Emp. Id ";
 cin>>id;
 cin.ignore(1,'\n');
 cout<<"Enter Name ";
 getline(cin,name);
 cout<<"Enter Date of Joining ";
 getline(cin,doj);
 }
 virtual void calc() = 0;
 virtual void disp() = 0;
};
class Regular : public Employee {
 public :
 int bsal,gsal;
 static int HA, DRA;
 void calc() {
  cout<<"Enter Basic Salary ";
  cin>>bsal;
  gsal = bsal+HA+DRA;
  }
  void disp() {
  cout<<"Regular Time Employee\n";
  cout<<"Emp id - "<< id<< endl;
  cout<<"Emp Name- "<< name<< endl;
  cout<<"Date of Joining "<< doj;
  cout<< endl;
  cout<<"Gross Salary "<< gsal;
  cout<< endl;
 }
};
int Regular :: HA = 3000;
int Regular :: DRA = 5000;

class Part_Time : public Employee {
 public :
 int hrs,gsal;
 static int pay;
 void calc() {
  cout<<"Enter Hrs. ";
  cin>>hrs;
  gsal = hrs*pay;
  }
  void disp() {
  cout<<"Part Time Employee ";
  cout<< endl;
  cout<<"Emp id - "<< id;
  cout<< endl;
  cout<<"Emp Name- "<< name;
  cout<< endl;
  cout<<"Date of Joining "<< doj;
  cout<< endl;
  cout<<"Gross Salary "<< gsal;
  cout<< endl;
 }
};
int Part_Time :: pay = 500;
int main() {
 cout<<"Enter Regular Emp Info\n";
 Regular r;
 r.input();
 r.calc();
 cout<<"Enter Part Time Emp Info\n";
 Part_Time p;
 p.input();
 p.calc();
 r.disp();
 p.disp();
 return 0;
}
OUTPUT
Enter Regular Emp Info
Enter Emp. Id 12
Enter Name Alok
Enter Date of Joining 01-07-2015
Enter Basic Salary 25000
Enter Part Time Emp Info
Enter Emp. Id 23
Enter Name Ashok
Enter Date of Joining 01-10-2016
Enter Hrs. 30
Regular Time Employee
Emp id - 12
Emp Name- Alok
Date of Joining 01-07-2015
Gross Salary 33000
Part Time Employee
Emp id - 23
Emp Name- Ashok
Date of Joining 01-10-2016
Gross Salary 15000


Get it on Google Play


CONTACT DETAILS

info@prowessapps.in
(8AM to 10PM):

+91-9026070669 , +91-9451396824

© 2016, prowessapps.in, All rights reserved