Uses Scala, Slick and H2 Database Engine

Given a string

1. return the most occurring character
2. return the least occurring character
3. count of occurrence of all characters

sample String: hluwriwepo;lgjhs,jgcksdfol'w;ieuhf ujweyhflvsdlv';.,asnncbsnbcnbsadnbvhwgdsndm

StudentCourse --StudentId, StudentName ,CourseId, StartDate,EndDate Course -- CourseId,CourseName,CourseDuration,Credit,Cost

APIs:

1. List all available courses
2. Enroll a Student in a course and don’t enroll more than 30 students in any course
3. Get the Course which has Maximum enrollment
4. Get the number of courses each Student is enrolled at the sametime

There is an executable fat jar available in repo at target\scala-2.12\ScalaSolutions-assembly-0.1.jar, which can be run as below

java -jar ScalaSolutions-assembly-0.1.jar