private static void listAllStudent() {
        Connection conn = null;
        Statement stmt = null;

        List<Student> studentEntitiesList = new ArrayList<Student>();

        try {
            //STEP 2: Register JDBC driver
            Class.forName("com.mysql.jdbc.Driver");

            //STEP 3: Open a connection
            System.out.println("Connecting to database...");
            conn = DriverManager.getConnection(DB_URL, USER, PASS);

            //STEP 4: Execute a query
            System.out.println("Creating statement...");
            stmt = conn.createStatement();
            String sql = "SELECT STUDENT_ID, STUDENT_NAME, EMAIL FROM STUDENT";
            ResultSet rs = stmt.executeQuery(sql);

            Student student;
            //STEP 5: Extract data from result set
            while (rs.next()) {
                //Retrieve by column name
                Long studentId = rs.getLong("STUDENT_ID");
                String studentName = rs.getString("STUDENT_NAME");
                String email = rs.getString("EMAIL");

                student = new Student();
                student.setId(studentId);
                student.setName(studentName);
                student.setEmail(email);
                studentEntitiesList.add(student);
            }
            //STEP 6: Clean-up environment
            rs.close();
            stmt.close();
            conn.close();

        }
        catch (SQLException se) {
            //Handle errors for JDBC
            se.printStackTrace();
        } catch (Exception e) {
            //Handle errors for Class.forName
            e.printStackTrace();
        } finally {
            //finally block used to close resources
            try {
                if (stmt != null) stmt.close();
            } catch (SQLException se2) {
            }// nothing we can do
            try {
                if (conn != null) conn.close();
            } catch (SQLException se) {
                se.printStackTrace();
            }//end finally try
        }//end try

        System.out.println("Total student : "+ studentEntitiesList.size());
    }