| 71 | |
| 72 | print("Example 3") |
| 73 | class Exam: |
| 74 | def __init__(self): |
| 75 | self._writing_grade = 0 |
| 76 | self._math_grade = 0 |
| 77 | |
| 78 | @staticmethod |
| 79 | def _check_grade(value): |
| 80 | if not (0 <= value <= 100): |
| 81 | raise ValueError("Grade must be between 0 and 100") |
| 82 | |
| 83 | |
| 84 | print("Example 4") |
| 85 | @property |
| 86 | def writing_grade(self): |
| 87 | return self._writing_grade |
| 88 | |
| 89 | @writing_grade.setter |
| 90 | def writing_grade(self, value): |
| 91 | self._check_grade(value) |
| 92 | self._writing_grade = value |
| 93 | |
| 94 | @property |
| 95 | def math_grade(self): |
| 96 | return self._math_grade |
| 97 | |
| 98 | @math_grade.setter |
| 99 | def math_grade(self, value): |
| 100 | self._check_grade(value) |
| 101 | self._math_grade = value |
| 102 | |
| 103 | galileo = Exam() |
| 104 | galileo.writing_grade = 85 |