1. What is the difference between an external and internal iterator?
2. How to create a tree in Java?
3. Can a C++ program be run without a header file?
4. What is the statement which you write to free the allocated memory?
5. Write a program to overload a function?
6. Write a program to covert IP address to physical address by using any C++/Java?
7. What is recursion?
8. What is the difference between a link list and a doubly link list?