Modern Java · interview question
How would you explain a compact constructor in Java Records used for in an interview?
Multiple choiceMediumchapter-12-curatedpremiummodern-javajava-records
record Order(String id, double total) { Order { if (total < 0) throw new IllegalArgumentException("Total cannot be negative"); } }Answer and explanation
Correct answer
C. Performing validation on the fields
Why
Compact constructors provide a way to perform validation or initialization logic on the fields of a record before they are set, without having to write a full constructor.
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