changed the file structure

Code/Steiner/helpMePlease/src/App.java

@@ -0,0 +1,17 @@
+public class App {
+    public static void main(String[] args) {
+        // (Kein) Casting notwendig
+        int intValue = 42;
+        double doubleValue = intValue;
+
+        System.out.println("int value: " + intValue);
+        System.out.println("double value: " + doubleValue);
+
+        // Casting nötig
+        double largeDoubleValue = 123.456;
+        int intValueFromDouble = (int) largeDoubleValue;
+
+        System.out.println("double value: " + largeDoubleValue);
+        System.out.println("int value from double: " + intValueFromDouble);
+    }
+}