all done

src/main/java/dev/service/StudentManager.java

@@ -11,34 +11,25 @@ public class StudentManager {
 
     public void addStudents(ArrayList<Student> newStudents) {
 
-        // TODO:
-
-        // Merge students
-
-        // Hint:
-        // addAll()
+        students.addAll(newStudents);
 
     }
 
     public Student searchStudent(int id) {
-
-        // TODO:
-
-        // Loop through students
-
-        // Compare IDs
-
+        for (Student student : students) {
+            if (student.getId() == id) {
+                return student;
+            }
+        }
         return null;
     }
 
     public boolean removeStudent(int id) {
-
-        // TODO:
-
-        // Find student
-
-        // Remove student
-
+        for (Student student : students) {
+            if (student.getId() == id) {
+                students.remove(student);
+            }
+        }
         return false;
     }