PART II: Write a 2 page research paper (excluding title and reference pages) on programmer-defined functions.  Explain the concepts discussed in the textbook using at least an example not included in the textbook.  Use at least 3 resources (Wikipedia sources are not permitted) and list each resource used at the end of paper in the reference list section.  PART III :  (at least 4 sentences each.) Q1: What does Function Declaration and Function Call do? Q2: Describe the principals of the black box, procedural abstraction and information hiding? Q3: Describe the differences between void-functions and functions that return one value? .

1. PART II:
Write a 2 page research paper (excluding title and reference
pages) on programmer-defined functions. Explain the concepts
discussed in the textbook using at least an example not included
in the textbook. Use at least 3 resources (Wikipedia sources are
not permitted) and list each resource used at the end of paper in
the reference list section.
PART
III
:
(at least 4 sentences each.)
Q1: What does Function Declaration and Function Call do?
Q2: Describe the principals of the black box, procedural
abstraction and information hiding?
Q3: Describe the differences between void-functions and
functions that return one value?