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Write a cpp program to print "Hello World!" using class and object?

#include<iostream.h>
#include<conio.h>
class HelloWorld
{
 public:
  void fun()
  {
  cout<<"Hello World!";
  }
}
void main()
{
 clrscr();
 HelloWorld obj;
 obj.fun();
 getch();
}

Ourput: