Added CSVScanner

Signed-off-by: Jim Martens <github@2martens.de>

07/src/de.dis2017/data/db/CSVScanner.java

@@ -0,0 +1,28 @@
+package de.dis2017.data.db;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class CSVScanner {
+    /**
+     * Scans the sales.csv file.
+     * @return a list of csv entries
+     * @throws FileNotFoundException if file doesn't exist
+     */
+    public List<String> scan() throws FileNotFoundException {
+        List<String> entries = new ArrayList<>();
+        
+        Scanner scanner = new Scanner(new File("sales.csv"));
+        scanner.useDelimiter(";");
+        while (scanner.hasNext()) {
+            String current = scanner.next();
+            entries.add(current);
+        }
+        scanner.close();
+        
+        return entries;
+    }
+}