Diploma Computer/IT

Object Oriented Programming Practical 24 Question 1 Write a C++ program to Read Content From One File and Write it Into Another File. addcontent.cpp C #include<fstream.h> #include<conio.h> void main() { clrscr(); char c; ifstream fin; ofstream fout; fin.open("abc.txt"); fout.open("xyz.txt",ios::ate); char ch; while(!fin.eof()) { fin.get(ch); if(fin.eof()) break; fout << ch; } fin.close(); fout.close(); cout<<"nFile content added […]

Object Oriented Programming Practical 23 Question 1 Write a C++ program to Read and Display File’s Content. read.cpp C #include<fstream.h> #include<conio.h> void main() { clrscr(); char c; ifstream fin; fin.open("abc.txt"); char a; while(fin) { fin.get(a); cout << a; } fin.close(); getch(); } #include<fstream.h> #include<conio.h> void main() { clrscr(); char c; ifstream fin; fin.open("abc.txt"); char a;

Object Oriented Programming Practical 22 Question 1 Write a program which show the use of Abstract class. abstract.cpp C #include<iostream.h> #include<conio.h> class Shape { public: virtual void draw() = 0; }; class Circle : public Shape { public: void draw() { cout << "Drawing Circle" << endl; } }; class Rectangle : public Shape {

Object Oriented Programming Practical 21 Question 1 Define a class parent in which use read function, define another class child use same read function. Display the data of both the read function on output screen using virtual function. virtual.cpp C #include<iostream.h> #include<conio.h> class Parent { public: virtual void read() { cout << "Parent class read

Object Oriented Programming Practical 20 Question 1 Write a C++ program to add two complex numbers using operator overloading by a friend function. complex.cpp C #include<iostream.h> #include<conio.h> class complex { int real,img; public: void accept() { cout<<"nEnter real part of complex number: "; cin>>real; cout<<"nEnter imaginary part of complex number: "; cin>>img; } void display()

Object Oriented Programming Practical 19 Question 1 Overload the unary operator –(minus) using member function and friend function unary.cpp C #include<iostream.h> #include<conio.h> class unary { float num; public: void accept() { cout<<"nEnter number: "; cin>>num; } void display() { cout<<"Number= "<<num<<endl; } unary operator–() { num=num-1; } }; void main() { clrscr(); unary u; u.accept();

Object Oriented Programming Practical 18 Question 1 Write a C++ Program to interchange the values of two int , float and char using function overloading. swap.cpp C #include<iostream.h> #include<conio.h> void swap(int a,int b) { int temp=a; a=b; b=temp; cout<<"nAfter swapping number1 is "<<a<<" and number2 is "<<b<<endl; } void swap(float a,float b) { float temp=a;

Object Oriented Programming Practical 17 Question 1 Write a C++ program declare a class “polygon” having data members width and height. Derive classes “rectangle” and “triangle” from “polygon” having area() as a member function. Calculate area of triangle and rectangle using pointer to derived class object. polygon.cpp C #include<iostream.h> #include<conio.h> class polygon { public: int

Object Oriented Programming Practical 16 Question 1 Write a C++ program to declare a class “Book” containing data members book_name, auther_name, and price . Accept this information for one object of the class using pointer to that object. book.cpp C #include<iostream.h> #include<stdio.h> #include<conio.h> class book { public: int price; char book_name[50],author_name[50]; void accept() { cout<<"nEnter

Object Oriented Programming Practical 15 Question 1 Write a program which show the use of constructor in derived class. car.cpp C #include<iostream.h> #include<conio.h> #include<string.h> class car { char car_type[100]; public: car(char c_type[30]) { strcpy(car_type,c_type); } void display() { cout<<"nCar c_type: "<<car_type; } }; class brand:public car { float speed; char brand_name[50]; public: brand(float sp,char name[30],char