diff --git a/src/Dozent.java b/src/Dozent.java
new file mode 100644
index 0000000..6140c6f
--- /dev/null
+++ b/src/Dozent.java
@@ -0,0 +1,20 @@
+public class Dozent extends Person{
+
+    private String bueronummer;
+    private String telefonnummer;
+
+
+    public Dozent(String name, String id, String bueronummer, String telefonnummer) {
+        super(name, id);
+        this.bueronummer = bueronummer;
+        this.telefonnummer = telefonnummer;
+    }
+
+    public String gibBuero(){
+        return bueronummer;
+    }
+
+    public String gibTelefonnummer() {
+        return telefonnummer;
+    }
+}
diff --git a/src/Person.java b/src/Person.java
new file mode 100644
index 0000000..e73dc06
--- /dev/null
+++ b/src/Person.java
@@ -0,0 +1,15 @@
+public class Person {
+
+    private String name;
+    private String id;
+
+    public Person(String name, String id){
+        this.name = name;
+        this.id = id;
+    }
+
+    public String gibInfo(){
+        return name + ", ID: " + id;
+    }
+
+}
diff --git a/src/Student.java b/src/Student.java
new file mode 100644
index 0000000..d0b3c77
--- /dev/null
+++ b/src/Student.java
@@ -0,0 +1,17 @@
+public class Student extends Person{
+
+    private int anzahlCredits;
+
+    public Student(String name, String id) {
+        super(name, id);
+        anzahlCredits = 0;
+    }
+
+    public int gibCredits() {
+        return anzahlCredits;
+    }
+
+    public void erhoeheCredits(int anzahl) {
+        anzahlCredits += anzahl;
+    }
+}