1. Clear and Unclear Windows1

2. Branching Statements

3. The if / else if / else branching statement
if ( bool-expression ) {
statement(s) }
else

4. The if / else if / else branching statement
if ( bool-expression1 ) {
statement(s) }
else if (bool-expression2 )
else

5. Your task… New project named branches
Write a quick and simple calculator program:
Display the message “If statement calculator…”
Ask the user for a number (save it)
Ask the user for a 2nd number (save it)
Ask the user what math operation to do ( +, -, *, / )
Provide an error message if the user doesn’t enter a valid operator
Use an if /else if /else to display the answer

6. The switch branching statement
switch ( variable ) {
case <option 1>:
<code>
break;
case <option 2>:
default: }

7. The switch branching statement
switch ( variable ) {
case <option 1>:
<code>
break;
case <option 2>:
default: }
switch ( userName) {
case “Korben Dallas”:
Console.WriteLine(“LeeLoo loves you”);
break;
case “Zorg”:
Console.WriteLine(“LeeLoo will destroy you”);
default:
Console.WriteLine(“Be careful!”); }

8. Your task continued… Create a new project named switch:
Do the same thing again, write a simple calculator program
Use a switch instead of an if
Display the message “Switch statement calculator…”

9. Clear and Unclear Windows