From c5f506ab90c97f6af77187bdde8c1f4e6de55522 Mon Sep 17 00:00:00 2001
From: malawskimi88886 <malawskimi88886@th-nuernberg.de>
Date: Tue, 8 Nov 2022 16:32:14 +0100
Subject: [PATCH] Commit3

---
 src/Helpers.java | 55 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/Helpers.java

diff --git a/src/Helpers.java b/src/Helpers.java
new file mode 100644
index 0000000..0dfc8d8
--- /dev/null
+++ b/src/Helpers.java
@@ -0,0 +1,55 @@
+import java.io.*;
+import java.math.BigInteger;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+
+public class Helpers {
+
+    // Lesen einer Textdatei in ein Stringarray
+    public static String[] readTextdatei(String name) {
+        String line;
+        ArrayList<String> result = new ArrayList<String>();
+        try {
+            FileReader fr = new FileReader(name);
+            BufferedReader br = new BufferedReader(fr);
+            while ((line = br.readLine()) != null)
+                result.add(line);
+            br.close();
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+        return result.toArray(new String[]{});
+    }
+
+    // Schreiben eines Stringarray in eine Textdatei
+    public static void writeTextdatei(String name, String[] lines) {
+        try {
+            FileWriter fw = new FileWriter(name);
+            BufferedWriter bw = new BufferedWriter(fw);
+            PrintWriter pw = new PrintWriter(bw);
+            for (int i = 0; i < lines.length; i++)
+                pw.println(lines[i]);
+            pw.close();
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    // Berechnen des Hashwerts zu einem String und
+    // Rückgabe als Hex-Zeichenkette
+    public static String getHash(String w) {
+        try {
+            byte[] bytesOfMessage = w.getBytes("UTF-8");
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            byte[] thedigest = md.digest(bytesOfMessage);
+            return String.format("%032x", new BigInteger(1, thedigest));
+        } catch (UnsupportedEncodingException | NoSuchAlgorithmException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+}