Practice with method headers
Write a method header (just the header, not the whole method) for each of the following.
1. A method that, given a person’s birth date, returns whether or not their birthday has already
passed this year.
2. A method that, given a person’s birth date, returns how old they are.
3. A method that, given a number, prints a square of *s with size equal to the input number.
4. A method that, given a student’s ID number and a CS department course number, returns
whether the student has satisfied the prerequisites to take the specified course.
5. A method that, given a number, prints whether that number is a perfect square.
6. A method that, given a number, returns the square root of that number.