Branches

• == - tests for quality
• && - represents and
• || - represents or

Conditional operators

if

classify = (input >= 0) ? "nonnegative" : "negative";

int a = 5;
int b = 6;
if (a + b > 10)
    Console.WriteLine("The answer is greater than 10.");

int a = 5;
int b = 3;
if (a + b > 10)
    Console.WriteLine("The answer is greater than 10");
else
    Console.WriteLine("The answer is not greater than 10");

int a = 5;
int b = 3;
int c = 4;
if ((a + b + c > 10) && (a == b))
{
    Console.WriteLine("The answer is greater than 10");
    Console.WriteLine("And the first number is equal to the second");
}
else
{
    Console.WriteLine("The answer is not greater than 10");
    Console.WriteLine("Or the first number is not equal to the second");
}

case

switch (i)
{
    case 1: //top border
    case var value1 when value1 == n * 2: //intermediate border
    case var value2 when value2 == n * 4: //intermediate border2
        Console.WriteLine(new String('+', tableWidth));
        break;
    case var value when value == n: //text string (String1)
        Console.WriteLine('+' + new string(' ', n - 1) + textString + new string(' ', n - 1) + '+');
        break;
    case var value when value > n * 2 && value < n * 4: //String2
        Console.WriteLine('+' + String2(i % 2, tableWidth) + '+');
        break;
    default:
        Console.WriteLine('+' + new string(' ', tableWidth - 2) + '+'); //blank strings (String1)
        break;
}

Loops

while

int counter = 0;
while (counter < 10)
{
  Console.WriteLine($"Hello World! The counter is {counter}");
  counter++;
}

do

int counter = 0;
do
{
  Console.WriteLine($"Hello World! The counter is {counter}");
  counter++;
} while (counter < 10);

foraech

var names = new List<string> { "<name>", "Ana", "Felipe" };
foreach (var name in names)
{
  Console.WriteLine($"Hello {name.ToUpper()}!");
}

for

for (int i = 0; i <= 10; i += 2) 
{
  Console.WriteLine(i);
}