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In which scenario is it most appropriate to use fail-fast validation in a constructor?

Multiple choiceHardchapter-6-curatedpremiumexceptionsfail-fast-validation
java
public class Order {
  private double total;
  public Order(double total) {
    if (total < 0) {
      throw new IllegalArgumentException("Total must be non-negative");
    }
    this.total = total;
  }
}
Choose one answer
Answer and explanation

Correct answer

A. When object state can be invalid

Why

Fail-fast validation in a constructor is essential when object state can be invalid. By validating inputs early, you ensure that only valid objects are created, preventing future errors and maintaining system integrity.

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