System.out.println("Sum of 3 and 4: " + calc.add(3, 4)); // Output: 7 System.out.println("Sum of 1, 2, and 3: " + calc.add(1, 2, 3)); // Output: 6 System.out.println ...

cout<<"The sum of 4 and 7 is: "<<sum(4,7)<<endl; cout<<"The sum of 4 ,7 and 9 is: "<<sum(4,7,9)<<endl; cout<<"The volume of a Cylinder of radius 3 and height 6 is ...