Object-oriented programming · interview question
Consider the following code snippet. What is one way to ensure that the 'Customer' class is immutable?
Multiple choiceHardchapter-3-curatedpremiumoopimmutability-basics
class Customer { private final String name; private final String email; }Answer and explanation
Correct answer
D. Make all fields private and final, and provide no setters.
Why
To make a class immutable, all fields should be private and final, ensuring they cannot be changed after the object is constructed, and no setters should be provided.
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