1. Advanced Programming
LOOP

2. Control Structures The if and if/else statements The goto statement
Program of control
Program performs one statement then goes to next line
Sequential execution
Different statement other than the next one executes
Selection structure
The if and if/else statements
The goto statement
No longer used unless absolutely needed
Causes many readability problems
Repetition structure
The while and do/while loops
The for and foreach loops

3. Control Statements
If, Else
While
For
Foreach

4. while Repetition Structure
An action is to be repeated
Continues while statement is true
Ends when statement is false
Contain either a line or a body of code
Must alter conditional
Endless loop

5. Example
write a program that reads in the grades of 50 students in a course (out of 100 points each ) and then count the number of A students ( grade > 85 ) and the number of B students (grade > 75 ). And print the average grad for all students.

6. // Class average with counter-controlled repetition
// Class average with counter-controlled repetition. using System; class Average1 { static void Main( string[] args ) { int total, // sum of grades gradeCounter, // number of grades entered gradeValue, // grade value average; // average of all grades total = 0; // clear total gradeCounter = 1; // prepare to loop while ( gradeCounter <= 10 ) // loop 10 times {

7. Console. Write( "Enter integer grade: " ); gradeValue = Int32
Console.Write( "Enter integer grade: " ); gradeValue = Int32.Parse( Console.ReadLine() ); total = total + gradeValue; gradeCounter = gradeCounter + 1; }
average = total / 10; // integer division
Console.WriteLine( "\nClass average is {0}", average );
} // end Main
} // end class Average1

8. Example
Assume you put 1000 pounds in a projects that returns a profit of about 5% per year. How long will it take for your money to double ?
Assume you put 5000 pounds in a projects that returns a profit of about 10% per year. How much money will you have in 5 years

9. for Repetition Structure(
int
counter = 1; counter <= 5; counter++ )
Initial value
of control variable
Increment
Control variable
name
Final value
keyword
Loop-continuation condition

10. // Counter-controlled repetition with the for structure.
using System;
class ForCounter {
static void Main( string[] args ) {
for ( int counter = 1; counter <= 5; counter++ )
Console.WriteLine( counter +” “); }

11. factorial(n) is 1 X 2 X 3 …… x n
Example
Write a program to ask the user for a positive integer, and then display its factorial. Given that
factorial(n) is 1 X 2 X 3 …… x n 

12. using System;
using System.Windows.Forms;
class Interest {
static void Main( string[] args )
double amount, principal = , rate = .05;
string output;
output = "Year\tAmount on deposit\n";
for ( int year = 1; year <= 10; year++ )
amount = principal *Math.Pow( rate, year );
output += year + "\t" +
String.Format( "{0:C}", amount ) + "\n"; }
MessageBox.Show( output, "Compound Interest",
MessageBoxButtons.OK, MessageBoxIcon.Information );}}

13. Example
In one university, it has a rule that at least 75% of student in each course must pass. This means that the pass mark for each course will differ. Write a program that will read 100 students’ marks and determine the pass mark.

14. Welcome4.cs Message Box
// Printing multiple lines in a dialog Box. using System; using System.Windows.Forms; class Welcome4 { static void Main( string[] args ) MessageBox.Show( "Welcome \n to \n C# \n programming!" );} }

15. Simple Program Graphical User Interface
GUIs are used to make it easier to get data from the user as well as display data to the user
Message boxes
Within the System.Windows.Forms namespace
Used to prompt or display information to the user

16. Simple Program
Many compiled classes need to be referenced before they can be used in classes
Assemblies are the packing unit for code in C#
Namespaces group related classes together
Add Reference dialogue

17. Simple Program
References folder
Solution Explorer
System.Windows.Forms reference
Adding a reference to an assembly in Visual Studio .NET (part 2).

18. Message boxes - Icons Formatting Buttons (variable : format) OK
OKCancel
YesNo
AbortRetryIgnore
YesNoCancel
RetryCancel
- Icons
Exclamation
Question
Error
Information
Formatting
(variable : format)

19. using System;
using System.Windows.Forms;
class Sum {
static void Main( string[] args ) {
int sum = 0;
for ( int number = 2; number <= 100; number += 2 )
sum += number;
MessageBox.Show( "The sum is " + sum, "Sum Even Integers from 2 to 100", MessageBoxButtons.OK, MessageBoxIcon.Information ); } }

20. Argument 4: MessageBox Icon (Optional)
Argument 3: OK dialog button. (Optional)
Argument 2: Title bar string (Optional)
Argument 1: Message to display

21. Examples Using the for Structure

23. A number of students are answering a questionnaire form that has 25 questions. Answer to each question is given as an integer number ranging from 1 to 5. Write a program that first reads the number of students that have left the fulfilled questionnaire. After that the programs reads answers so that first answers of the first student are entered starting from question 1 and ending to question 25.
Answers of second student are then read in similar way. When all answers are entered the program finds out what are questions (if any) to which all students have given the same answer. Finally the program displays those questions (the question numbers).

24. Pascal’s triangle looks like this:1
1 1
1 2 1
The number in each cell of each row is the sum of the numbers in the two cells above it. Write a method Pascal (int rows ) to print Pascal's triangle with number of rows is row.

25. Write a console application has input a non-negative integer and show a string of binary bits representing n.

26. ) (1/2 mark per correct circle, -1/2 mark per incorrect circle) Circle the syntax or logic errors in the following C# class and briefly explain what is wrong beside your circle.
class TempConv; { public void main( ); double BASE_TEMP = 30; int Deg_C float Deg_F; Console.WriteLine( 'Please enter a temperature in degrees C ' ); Deg_C = console.readline(); Deg = (BASE_TEMP + (9 / 5) * (int) Deg_C); Console.WriteLine('The Fahrenheit temperature is ' + Deg_F + '.'); }

27. Write a code in each button of the flowing windows application that calculates the electricity bill. the price of the electricity rate is 10 for each kilowatt for governmental use, 5 for home use and 20 for commercial use. The command “Clear” removes the old values from the texts in the program

28. Construct C# console application to solve the following problem
Construct C# console application to solve the following problem. A football team plays n games per year in its league. Given n and the scores of all of the games the team played this year (both the team’s score and its opponent’s score for each game), compute the team’s margin of victory in the games that it played (win = 3, tied = 1 and ignore lost).