Primary Constructor

class Student(val name: String, val gpa: Double, val semester: String, val estimatedGraduationYear: Int) 
fun main() {
  var student = Student("Lucia", 3.95, "Fall", 2022) 
  println(student.name)     
  //Prints: Lucia
  println(student.gpa)
  //Prints: 3.95
  println(student.semester) 
  //Prints: Fall
  println(student.estimatedGraduationYear) 
  //Prints: 2022
}