# Programmieren in C#: Codeausschnitte von Schülerinnen und Schüler

## Aufgaben B

### Variablennamen:

<code csharp>
string Age = Console.ReadLine();
int y = Int32.Parse(Age);
int x = 18;
</code>

### If-else if-else:

<code csharp>
if (Gender == "male")
{
    Console.WriteLine("Hello Mister ...");
}
else
{
    Console.WriteLine("Hello Madam ...");
}
</code>

<code csharp>
if (ageInt >= 18)
{
    Console.Writeline("...")
}
if (ageInt < 18)
{
    Console.Writeline("...")
}
</code>

<code csharp>
if (Number == 42)
{
    Console.WriteLine("...");
}
else if (Number > 0 && Number != 42)
{
    Console.WriteLine("...");
}
else if (Number == 0)
{
    Console.WriteLine("...");
}
else
{
    Console.WriteLine("...");
}
</code>

## Aufgaben D

### while-Schleifen

<code csharp>
int answer;
Random rand = new Random();

int num1 = rand.Next(1, 10);
int num2 = rand.Next(1, 10);
Console.WriteLine(num1 + "+" + num2 + "= ?");
answer = int.Parse(Console.ReadLine());

while (answer == num1 + num2)
{
    Console.WriteLine("That's right! " + num1 + " plus " + num2 + " equals " + answer);
    num1 = rand.Next(1, 10);
    num2 = rand.Next(1, 10);
    Console.WriteLine(num1 + "+" + num2 + "= ?");
    answer = int.Parse(Console.ReadLine());
}
</code>

### Scope

<code csharp>
while (true)
{​​​​​
    Console.WriteLine("Please write a number");
    string Number = Console.ReadLine();
    int UserNumber;
    if (Int32.TryParse(Number, out UserNumber))
    {​​​​​
        ...
    }​​​​​
    else
    {​​​​​
        ...
    }​​​​​
}
</code>