Instance variables declared readonly do not or cannot:
A) use the principle of least privilege
B) be initialized
C) be modified once the object is constructed
D) cause syntax errors if used as a left-hand value

Question

Quizplus · Accepted Answer

Readonly instance variables cannot be modified once the object is constructed, hence the name "readonly". This is a design decision that promotes immutability and can help prevent unexpected side effects or bugs in code. Unlike constants, they can be initialized at runtime, but cannot be changed. This property aligns with the principle of least privilege, as there is no reason for any external code to modify a variable that is supposed to be read-only.

Instance Variables Declared Readonly Do Not or Cannot