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