From 72790a51798185cc1fe7cfc3cf11c734b5167cf2 Mon Sep 17 00:00:00 2001
From: Christian Baltzer <christian@baltzer.de>
Date: Tue, 16 Jul 2019 16:23:13 +0200
Subject: [PATCH] =?UTF-8?q?noten=20hinzugef=C3=BCgt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/ugsbo/com/notenSpeicher/Noten.java   | 61 ++++++++++++++++++-
 1 file changed, 59 insertions(+), 2 deletions(-)

diff --git a/src/main/java/ugsbo/com/notenSpeicher/Noten.java b/src/main/java/ugsbo/com/notenSpeicher/Noten.java
index de5d9ca..48f8874 100644
--- a/src/main/java/ugsbo/com/notenSpeicher/Noten.java
+++ b/src/main/java/ugsbo/com/notenSpeicher/Noten.java
@@ -1,9 +1,66 @@
 package ugsbo.com.notenSpeicher;
 
+import java.security.MessageDigest;
+
 public class Noten {
 
-  public Noten() {
-    // TODO Auto-generated constructor stub
+
+  String Fach;
+  int Note;
+  int durchschnitt;
+  Noten vorher;
+  
+  String ownHash;
+  String previousHash;
+  
+  public Noten(String eingabeFach, int eingabeNote) {
+    Fach = eingabeFach;
+    Note = eingabeNote;
+    durchschnitt = eingabeNote;
+    
+    vorher = null;
+    previousHash = null;
+    
+    ownHash = createNewHash(eingabeFach);
   }
 
+  private String createNewHash(String input) {
+    try {
+      MessageDigest digest = MessageDigest.getInstance("SHA-256");            
+      //Applies sha256 to our input, 
+      byte[] hash = digest.digest(input.getBytes("UTF-8"));           
+      StringBuffer hexString = new StringBuffer(); // This will contain hash as hexidecimal
+      for (int i = 0; i < hash.length; i++) {
+          String hex = Integer.toHexString(0xff & hash[i]);
+          if(hex.length() == 1) hexString.append('0');
+          hexString.append(hex);
+      }
+      return hexString.toString();
+  }
+  catch(Exception e) {
+      throw new RuntimeException(e);
+  }
+  }
+  
+  
+  public String getFach() {
+    return Fach;
+  }
+  
+  public int getNote() {
+    return Note;
+  }
+  
+  public int getDurchschnitt() {
+    return durchschnitt;
+  }
+  
+  public Noten getVorher() {
+    return vorher;
+  }
+  
+  public String getOwnHash() {
+    return ownHash;
+  }
+  
 }