Inheritance in Object Oriented Programming:

Inheritance in Object Oriented Programming:

The general form or the syntax of specifying a derived class is :

Class derivedclassname: acessspecifies baseclassname

{

//body of the derived class

}

The colon indicates that, the derived class named derivedclassname is derived from the base class named baseclassname.The access specifier of the base class must be either private, protected or public.if no access-specifier is present is assumed private by default. The body of the derived class contains member data and member functions of its own.

Single inheritance: 

A derived class with only one base class is called as single Inheritance.The derived class can access all the members of the base class and can add members of its own.

Write a program to explain Single inheritance.

Algorithm:

step1:Take two classess teacher and student

step2:withina teacher class Enter name and number values with the help of getdata() function and

display this data using putdata() function.

step3:within the student class Enter and display marks m1,m2,m3 with the help of

getdata(),putdata() functions.

step4:within the student class extends teacher class and using data and their functions to the

student class

Program Code:

#include<iostream.h>

class teacher

{

private:

char name[25];

long number;

public:

void getdata()

{

cout<<”\n \t Enter your name:”;

cin>>name;

cout<<”\n \t Enter your number:”;

cin>>number;

}

void putdata()

{

cout<<”\n \t name:”<<name;

cout<<”\n \t number : ”<<number;

}

};

class student : public teacher

{

private:

int m1,m2,m3;

public:

void getdata()

{

teacher :: getdata();

cout<<”\n \t Enter marks in three subjects:”;

cin>>m1>>m2>>m3;

}

void putdata()

{

teacher :: putdata();

cout<<”\n \t Marks of three subjects:”<<m1<<m2<<m3;

}

};

void main()

{

student s1,s2;

cout<<”\n Enter data for student 1:\n”:

s1.getdata();

cout<<”\n Enter data for student2 :\n”;l

s2.getdata();

cout<<”\n the data of student 1:”;

s1.putdata();

cout<<”\n the data of student 2:”;

s2.putdata();

}

Output:

Enter data for student 1

Enter your name:Ram

Enter your number:1

Enter 3 subject mark:75 65 85

Enter data for student 2

Enter your name :Sham

Enter your number:2

Enter marks in 3 subjects:65 85 75

The data for student 1

Name:Ram

Number:1

Marks of three subjects:75 65 85

The data for student 2

Name :Sham

Number :2

Marks of three subjects:65 85 75

Thanks

Mukesh Rajput