Test: normal

src/Prak1/zahlenfilterNeu.java

@@ -0,0 +1,42 @@
+package Prak1;
+
+public class zahlenfilterNeu {
+
+    public static void main(String[] args) {
+        printNumbers();
+    }
+    private static void printNumbers(){
+        int grenze = 20;
+        int i;
+        for (i=1; i<=grenze; i++){
+            if(filter(i)){
+                System.out.println(i);
+            }
+        }
+    }
+    public static boolean filter(int i){
+    return !(durch5teilbar(i) || endetMit9(i) || summeDurch3(i));
+}
+    public static boolean durch5teilbar(int i) {
+        if (i % 5 == 0) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+    public static boolean endetMit9(int i) {
+        if (i % 10 == 9) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+    public static boolean summeDurch3(int i) {
+        int x = i + (i - 1);
+        if (x % 3 == 0) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+}