1. CS 2308 Exam I Review

2. Exam Format 80 Total Points
60 Points Writing Programs
15 Points Tracing Code/Algorithms and determining results
5 Points Short Answer
Similar to quizzes and programming assignments

3. Example Programming Problem
Write a function that accepts two parameters: an array of integers and the number of integers in the array. Return an integer representing the number of odd integers in the array.

4. Example Tracing Problem
What will the EXACT output of the following program be?
int foo = 9;
int *ptr = &foo;
float foo2 = 5.7;
*ptr = 2;
foo2 = foo - foo2;
if (foo > foo2)
cout << "Hello!";
else if (foo < foo2)
cout << foo2;
else
cout << foo;
cout << endl;
cout << "foo2 is: " << fixed
<< setprecision(1) << foo2 << endl;

5. Example Short Answer
Why would we rarely use the equality operator when comparing floating point values?

6. Arrays 45 points 2-D arrays One and two-dimensional arrays
Declaration of various types
traversing
Difference between physical and logical size
Passing arrays as parameters
Arrays of records
Understand tsuPod program
Strings
Know how to use the string functions such as length(), substr()
Know how to use a string like an array of characters
Understand BioHelp and Exam Grader programs
2-D arrays
Understand Game of Life program

7. Structures 15 points Know how to declare a structure
Know how to access the fields in a structure
Arrays of structures
Understand tsuPod program

8. Pointers
15 Points
A pointer is a variable that holds the address of a memory location
Declaration
int *ptr;
Assignment
ptr = &foo; //& is the address function
Dereferencing
*ptr = 54; //same as foo=54;
You can point to any kind of data type
Relationship between arrays and pointers
Understand the “new” and “delete” commands

9. How to Study Rewrite all the programs.
Learn by doing and recognizing patterns.
Don’t stay up late!! Get some sleep and eat a good breakfast.

10. What to bring Pencils and erasers We will provide scratch paper
No calculators

11. Questions