main.dart

void main() {
  double classAveragePoint, studentPercentage, studentPoint;
  
  print('Enter percentage attained by student:'); // individual student's percentage
  print('Enter points scored by student:'); // individual student's scored point(s)
  print('Enter students\' average score:'); // (collective) average score of whole class
  
  /*'double.parse(stdin.readLineSync())' from package 'dart:io'
   * would be used if online consoles supported user input
   */
  classAveragePoint = 70;
  studentPercentage = 60;
  studentPoint = 99.9;
  
  
  // first condition -- If the percentage is higher than or equal to 60, the student has passed the semester.
  if (studentPercentage >= 60) {
    if (studentPoint >= (classAveragePoint - 5)) {
      print('====================\n' +
            'The student, having scored $studentPoint and attained a percentage of $studentPercentage ' +
            'has passed the semester.\n' +
            '====================');
    } else { // scored points less than class average by more than 5 points
      print('====================\n' +
          'The student attained a percentage of $studentPercentage; but for scoring $studentPoint ' +
          '(which is less than the class average by more than 5 points: ${classAveragePoint - studentPoint}) ,' +
          'the student has failed the semester.\n' +
          '====================');
    }
    
  } else { // when percentage is less than 60
    print('====================\n' +
          'The student, having scored $studentPoint and attained a percentage of $studentPercentage ' +
          'has failed the semester.\n' +
          'Student must attain a minimum percentage of 60 to pass the semester.\n' +
          '====================');
  }
  
  
}