Category: C++ Programs

/*PROGRAM TO FIND GREATEST AMONG THREE NUMBERS*/ #include<iostream.h> #include<conio.h> void main() { float a,b,c; clrscr(); cout<<“Enter any three numbers: “; cin>>a>>b>>c; if((a==b)&&(a==c)) cout<<“Numbers are equal.\n”; else { if((a>b) && (a>c)) …

/*PROGRAM TO COPY ONE FILE INTO ANOTHER FILE*/ #include<fstream.h> #include<iostream.h> #include<iomanip.h> #include<stdlib.h> #include<conio.h> void main() { clrscr(); ofstream outfile; ifstream infile; char fname1[10],fname2[10]; char ch; cout<<“Enter a file name to …

/*PROGRAM TO PERFORM INPUT AND OUTPUT OPERATIONS ON FILES*/ #include<iostream.h> #include<fstream.h> #include<conio.h> #include<stdlib.h> class file_io { ofstream outfile; char fname[10],line[100],ch; int i; public: void input(); void output(); }; void file_io::input() …

/*PROGRAM TO SHOW THE CONCEPT OF THIS POINTER*/ #include<conio.h> #include<iostream.h> class temp { int a; public: void process() { cout<<“Enter the value: “; cin>>a; cout<<“Value of is: “<<a<<endl; } void …

/*PROGRAM TO IMPLEMENT THE CONCEPT OF PURE VIRTUAL FUNCTIONS*/ #include<conio.h> #include<iostream.h> #include<stdio.h> class base { public: virtual void input()=0; virtual void output()=0; }; class derived:public base { char name[15]; int …

/*PROGRAM TO IMPLEMENT THE CONCEPT OF VIRTUAL FUNCTIONS*/ #include<conio.h> #include<iostream.h> class A { public: virtual void display() { cout<<“Base class A’s display() function is executed”<<endl; } }; class B:public A …

/*PROGRAM TO IMPLEMENT THE CONCEPT OF POINTER TO AN OBJECT*/ #include<conio.h> #include<iostream.h> #include<stdio.h> class student { int roll_no,age; char name[15]; public: void input(); void output(); }; void student::input() { cout<<“Enter …

/*PROGRAM TO SHOW THE CONCEPT OF VIRTUAL BASE CLASS*/ #include<conio.h> #include<iostream.h> class A { int a; public: void get_a() { cout<<“Enter a: “; cin>>a; cout<<“a= “<<a; } }; class B:public …

/*PROGRAM TO SHOW THE CONCEPT OF NESTED CLASS*/ #include<conio.h> #include<iostream.h> class A { int a; public: void get_a() { cout<<“Enter a: “; cin>>a; cout<<“a= “<<a; } class B { int …

/*PROGRAM TO SHOW THE CONCEPT OF CONTAINER CLASS*/ #include<conio.h> #include<iostream.h> class A { int a; public: void get_a() { cout<<“Enter a: “; cin>>a; cout<<“a= “<<a; } }; class B { …