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--- ef_informatik:programmieren_csharp_code_snippets_students_2021 [2021-08-30 13:51] – [Aufgaben B] sca
+++ ef_informatik:programmieren_csharp_code_snippets_students_2021 [2021-08-30 17:20] (aktuell) – [Scope] sca
@@ Zeile 56: / Zeile 56: @@
 ## 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>