1-Describe three approaches to exception handling in languages that do not provide direct support for it?

2-Write a detailed comparison of the exception-handling capabilities of C++ and those of Java?

3-Write a Scheme function that takes a list as a parameter and returns a list identical to the parameter except the last element has been deleted. ?

4 Write a Scheme function that takes a list and an atom as parameters and returns a list identical to its parameter list except with all top-level instances of the given atom deleted), except that the atom can be either an atom or a list.