1. CS 1428 Exam I Review

2. Exam Format 140 Total Points
40 Points Writing Programs
30 Points Tracing Algorithms and determining results
20 Points Short Answer
50 Points Fill in the Blank
Similar to quizzes and programming assignments

3. Example Programming Problem
Write a program that reads a floating point number representing the side of a square from a file named “test.txt” and prints out the area of the square formatted to five decimal places.

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

5. Example Short Answer
Approximately how many 12MB songs could I put in my 1GB iPod?

6. Chapter 1 35 points Types of errors Binary numbers Terminology
Conversions to/from base 10
Simple addition and subtraction
Conversion to/from 2’s complement
Terminology
Bits, bytes
kilo, mega, giga, tera
What do they mean?
Machine language, assembly language, high- level language
Von Neumann architecture
Problem solving process
Types of errors

7. Chapter 2 50 Points Variables and Identifiers Assignment
Valid identifiers
Data types
Integer types
Floating Point types
Characters
Boolean
Assignment
Arithmetic Operators

8. Chapter 3 30 Points cin Mathematical expressions static_cast Constants
Order of precedence
Combined operators (e.g. += and ++)
static_cast
Constants
Formatted output
Mixed mode operations (mixing floats and ints)
File input and output

9. Chapter 4 25 Points Relational operators Truth tables if statements
Logical operators && || !
if statements
if-else
if-else-if

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

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

12. Questions