EE 102 Sample Programs for D'Orazio textbook

• First programs
  • Add two numbers - basic version - declare variables, input values, calcualte, print results
  • Add two numbers - modification 1 - using napespace std "magic" line explained
  • Add two numbers - modification 2 - flexibility of notation
• data types and arithmetic operations
  • Hello Initials example - variable types
  • More engineering type calculations
  • More integer type calculations
  • Some rules about evaluating formulas (improved after the lecture)
  • common <cmath> library functions
• Examples how to format printouts for floating point numbers
  • Print floating point numbers without any formating
  • Print floating point numbers with fixed numbers of decimal digits
  • Print floating point numbers in scientific format
• Basic Input and Output
  • Read some data from a configuration file   data.txt  
  • Write results to files: only latest or append and keep all
  • explain input buffer ...
• Selection with if, alternative selections with if else, and switch case
  • Use of if statements to pick a max among many numbers
  • if statement with multiple variables
  • if-else statement
  • nested if-else statements
  • correct multiple eif-else for variable ranges
  • errorous multiple eif-else for variable ranges
  • Variations on simple medical advisor:
    1   2   bad   compact  
  • Selection with switch case
    • switch case examples ...
• Repetition stgatements - loop
  • How to quit/end the while loop - do the same thing in seven different ways
    Yet it is possible to do it in more ways than that - will look at it later
    • ask if more data is coming
    • check the range and quit if outside
    • check the range and quit if outside - nested structures
    • forever while loop with break (a better version the above)
    • ask for the total number of items up front
    • ask up front, and count down (same functionality as the one above)
    • ask if more data is coming - do while
  • Data from files, use of break and continue
    • reading data from file, use of break and continue
  • More applications for loops
    • multiple variables that change - calculating a series
    • a loop that ends when a variable diminishes - converting from DEC to BIN
    • special initialization - looking for an extremum value
  • Use of switch case inside loops
    • Counting GPA with switch-case (1)
    • Counting GPA with switch-case (2)
    • Counting grades without switch
    • Counting grades with switch and forever loop
    • Counting grades with switch and do-while loop
  • do while loops, discussion on loop exit conditions
    • Case study of exit conditions in do while and forever for loops
    • Case study of exit conditions in do while loops with two nested loops
  • for loops
    • for loop for the same task
    • forever for loop
    • two nested for loops - a multiplication table
    • two nested for loops - a triangular table
    • two nested for loops - a reverse triangular table
    • an improved multiplication table (self study)
    • printing various patters (good loop exercises)
    • investigate for loops (also exercises for quizes and exams)
• Functions
  • Introduction
    • The area of any triangle 1 - formulas
    • The area of any triangle 2 - use a function
    • The area of any triangle 3 - use functions multiple times
  • More about functions
    • functions that return nothing (void functions)
    • Fahrenheit to Centigrades converter with WindChill   update on WindChill  
    • Classification of functions by data flow (summary - very important)
  • Passing variables by reference
    • Introduction - typical   Introduction - in place   Introduction - bad design  
    • Solving for roots of a polynomial   enhanced version of the program   interesting data flow design  
    • Quiz question - Passing by value vs. by reference
  • Variable scope
    • variable scope in a functions in {} blocks
    • Static variables in a function
  • Recursive functions
    • factorial function - thorough analysis
    • factorial function (introduction)
    • power function (one more example)
    • Fibonacci function (but it is a very poor algorithm)
    • base conversion function (trick of reversed printing)
  • Outline of advanced features
    • Overloading POW function
    • The Swap template
    • Testing a few templates
• Introduction to Arrays, One-dimensional arrays
  • The step by step introduction - compare the group of programs (may be too slow for impatient readers)
    • Do it without any array
    • Do it with an array
    • Do it with an array and encoded constants
    • Do it with an array and current and maximum size
    • Do it with an array, sizes and functions
    • Do it with an array, and a look-up table for ranges
  • 1D array examples
    • Functions used for array operations
    • Some more interesting functions
• Two-dimensional arrays
  • 2D array examples
    • An example of some 2D arrray operations
• Introduction to Pointers
  • Do it with an array, sizes and functions
  • Passing by pointer vs. passing by reference to functions
  • Demonstration of pointer properties and pointer arithmetic
• C-style Strings
  • Simple operations on strings
  • How library functions work - the idea
  • How library functions work - pointer notation
  • More operations - the idea
  • More operations - pointer notation
  • Substring extraction example - for loop
  • Substring extraction example - strchr
  • Substring extraction example - strtok
  • Web server parsing example
  • Mail download parsing example
• Files and character arrays
  • Reading from a text file
    • Read non-space characters from a file
    • Read all possible characters from a file
    • Read char by char and count lines
    • Read line by line and count lines
    • Reuse the file variable to read more files
    • Character and word statistics
  • More file processing, writing to a text file
    • Copy non-empty lines from one file to another with strings
    • Open a file for writing with a warning about destroying an old file
  • Processing numerical data from a text file
    • Looking for a minimum decimal number in a text data file
    • Extracting some data from a text file
    • Statistics for numeric data stored in a text file

Source code listings were prepared using Code2HTML, courtesy of Peter Palfrader.