solved exercise 1

src/main/java/ch/zhaw/ads/KGVServer.java

@@ -0,0 +1,34 @@
+/**
+ * AnyServer -- Praktikum Experimentierkasten -- ADS
+ *
+ * @author E. Mumprecht
+ * @version 1.0 -- Geruest fuer irgendeinen Server
+ */
+package ch.zhaw.ads;
+
+import java.util.Scanner;
+import java.io.ByteArrayInputStream;
+
+
+public class KGVServer implements CommandExecutor {
+
+    //----- Dies implementiert das CommandExecutor Interface.
+    @Override
+    public String execute(String s) {
+        Scanner scanner = new Scanner(new ByteArrayInputStream(s.getBytes()));
+        int a = scanner.nextInt();
+        int b = scanner.nextInt();
+        return Integer.toString(kgv(a,b)) + "\n";
+    }
+
+    public int kgv(int a, int b) {
+        return a * b / ggt(a, b);
+    }
+
+    private Integer ggt(int a, int b) {
+        if (a > b) return ggt(a-b,b);
+        else if (a < b) return ggt(a,b-a);
+        else return a;
+    }
+
+}//AnyServer