Cgpa
constructor( sem1: Double = 0.0, sem2: Double = 0.0, sem3: Double = 0.0, sem4: Double = 0.0, sem5: Double = 0.0, sem6: Double = 0.0, cgpa: Double = 1.0, earnCrSem1: Double? = 0.0, earnCrSem2: Double? = 0.0, earnCrSem3: Double? = 0.0, earnCrSem4: Double? = 0.0, earnCrSem5: Double? = 0.0, earnCrSem6: Double? = 0.0)