up

project/src/main/java/cyou/chenx221/dao/ScoreDao.java

@@ -1,4 +1,21 @@
 package cyou.chenx221.dao;
 
+import cyou.chenx221.modal.Score;
+
+import java.util.List;
+
 public interface ScoreDao {
+    void addScore(Score score);
+
+    void updateScore(Score score);
+
+    void deleteScore(int scoreId);
+
+    Score getScoreById(int scoreId);
+
+    List<Score> getScoresByStudentId(int studentId);
+
+    List<Score> getScoresByCourse(String course);
+
+    List<Score> getAllScores();
 }

project/src/main/java/cyou/chenx221/dao/StudentDao.java

@@ -1,4 +1,17 @@
 package cyou.chenx221.dao;
 
+import cyou.chenx221.modal.Student;
+
+import java.util.List;
+
 public interface StudentDao {
+    void addStudent(Student student);
+
+    void updateStudent(Student student);
+
+    void deleteStudent(int studentId);
+
+    Student getStudentById(int studentId);
+
+    List<Student> getAllStudents();
 }