Given the code fragments: class Employee { Optional<Address> address; Employee (Optional<Address> address) { this.address = address; } public Optional<Address> getAddress() { return address; } }…

Question

Options

• ANew York
• BCity Not available
• Cnull
• DA NoSuchElementException is thrown at run time.

• A
  7% (3)
• B
  71% (30)
• C
  17% (7)
• D
  5% (2)

Explanation

Optional.ofNullable(null) returns an empty Optional - not one wrapping a null, but genuinely empty - so addrs1.isPresent() evaluates to false, causing the ternary to return "City Not Available" (B).

A (New York) is wrong because New York would only appear if the Optional contained an Address object, but since address was null, the Optional is empty and .getCity() is never reached. C (null) is wrong because the ternary's else-branch returns a non-null string literal; Optional exists precisely to avoid propagating nulls. D (NoSuchElementException) is wrong because that exception is thrown only when calling .get() on an empty Optional directly - the isPresent() guard here prevents that path from executing.

Memory tip: Think of Optional.ofNullable(x) as a box that may or may not contain something - if x is null, the box is empty. Always pair .get() with .isPresent() (or use .orElse()), and remember that an empty Optional is not the same as an Optional containing null.

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