Core Java · interview question
In an e-commerce application, a 'Customer' class has a 'getOrders()' method that returns a list of orders. What is a safe practice for handling this list?
Multiple choiceMediumchapter-3-curatedpremiumcore-javacode-reading-and-state-safety
Answer and explanation
Correct answer
A. Return a copy of the list.
Why
Returning a copy of the list ensures that the original list cannot be modified externally, preserving the integrity of the 'Customer' class's internal state.
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