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How can a Student object become more flexible?

How can a Student object become more flexible? (Computer science one · Example) — "A more flexible approach might be to allow the construction of a Student ins…

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Flexible Student construction trades immutability for flexibility.
A Student instance can be constructed without providing a course schedule.
This approach allows the schedule to be supplied after construction.
Outside code can add a course to the student.
The addCourse($c) method appends the course to the schedule.
The method implementation is: $this->schedule[] = $c;
The object gains greater flexibility.
The object no longer remains immutable.
Design balances competing considerations through compromise.

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How can a Student object become more flexible?

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Computer science one

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sam23

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"A more flexible approach might be to allow the construction of a Student instance without having to provide a course schedule. Instead, we could add a method that allowed the outside code to add a course to the student. For example,\n\n1 public function addCourse($c) {\n\n2 $this->schedule[] = $c;\n\n3 }\n\nThis adds some flexibility to our object, but removes the immutability property. Design is always a balance and compromise between competing considerations."

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