Merge branch 'master' into 'main'

.gitignore

build.gradle

gradle/wrapper/gradle-wrapper.jar

gradle/wrapper/gradle-wrapper.properties

gradlew

gradlew.bat

settings.gradle

...a/id/ac/ui/cs/advprog/turorial0/Turorial0Application.java

...ac/ui/cs/advprog/turorial0/controller/BaseController.java

.../ui/cs/advprog/turorial0/controller/CourseController.java

...ui/cs/advprog/turorial0/controller/StudentController.java

...rog/turorial0/exception/DuplicateCourseNameException.java

...og/turorial0/exception/DuplicateStudentNameException.java

...main/java/id/ac/ui/cs/advprog/turorial0/model/Course.java

...ain/java/id/ac/ui/cs/advprog/turorial0/model/Student.java

.../ui/cs/advprog/turorial0/repository/CourseRepository.java

...ui/cs/advprog/turorial0/repository/StudentRepository.java

.../id/ac/ui/cs/advprog/turorial0/service/CourseService.java

...ac/ui/cs/advprog/turorial0/service/CourseServiceImpl.java

...id/ac/ui/cs/advprog/turorial0/service/StudentService.java