ADD file via upload

StudentController.java

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+package com.example.classroomattendance.controller;
+
+import com.example.classroomattendance.model.Student;
+import com.example.classroomattendance.service.StudentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+@Controller
+public class StudentController {
+
+    @Autowired
+    private StudentService studentService;
+
+    @PostMapping("/pick")
+    public String pickRandomStudent(Model model) {
+        Student pickedStudent = studentService.pickRandomStudent();
+        model.addAttribute("pickedStudent", pickedStudent);
+        model.addAttribute("students", studentService.getAllStudents());
+        return "index";
+    }
+
+    @PostMapping("/updatePoints")
+    public String updateStudentPoints(@RequestParam Long studentId, @RequestParam double points, Model model) {
+        studentService.updateStudentPoints(studentId, points);
+        model.addAttribute("pickedStudent", studentService.pickRandomStudent());
+        model.addAttribute("students", studentService.getAllStudents());
+        return "index";
+    }
+
+    @GetMapping("/")
+    public String listStudents(Model model) {
+        model.addAttribute("students", studentService.getAllStudents());
+        return "index";
+    }
+}