Added writeToFile for the Professor Data

src/main/java/org/example/Professor.java

@@ -1,4 +1,13 @@
 package org.example;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
 /**
  * Represents a professor in the system.
  * This class holds the details of a professor including their ID, name, and role.
@@ -101,4 +110,10 @@ public class Professor {
                 ", role='" + role + '\'' +
                 '}';
     }
+    public void writeToFile() throws IOException {
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter("professorData.txt", true))) {
+            writer.write(this.toString());
+            writer.newLine();
+        }
+    }
 }