Core Java · interview question
How would you explain a common method to ensure an object's immutability in a Java interview?
Multiple choiceMediumchapter-3-curatedpremiumcore-javacode-reading-and-state-safety
Answer and explanation
Correct answer
C. Making all fields private and final
Why
To ensure immutability, all fields should be private and final, preventing modification after the object is constructed.
Test yourself on Core Java
A free test with instant, explained results. No account needed.
More Core Java questions
- What does executing a throw statement inside a catch block evaluate to?
- In Java, what happens if an exception is thrown in a method and not caught within that method?
- Which method would you use to add an element to a List at a specific position?
- Consider the following code snippet. What is the issue with the 'applyDiscount' method?
- How do you correctly initialize a BigDecimal to represent the monetary value 50.75?
- Why might using == with Integer objects sometimes return false even if they have the same value?