1Z0-816 Dumps

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Oracle 1Z0-816 dumps - 100% Pass Guarantee!

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Vendor: Oracle

Certifications: Oracle Certifications

Exam Name: Java SE 11 Programmer II

Exam Code: 1Z0-816

Total Questions: 80 Q&As ( View Details)

Last Updated: Mar 12, 2025

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1Z0-816 Q&A's Detail

Exam Code: 1Z0-816
Total Questions: 80
Single & Multiple Choice 80

1Z0-816 Online Practice Questions and Answers

Questions 1

Given:

var fruits = List.of("apple", "orange", "banana", "lemon");

You want to examine the first element that contains the character n.

Which statement will accomplish this?

A. String result = fruits.stream().filter(f -> f.contains("n")).findAny();

B. fruits.stream().filter(f -> f.contains("n")).forEachOrdered(System.out::print);

C. Optional result = fruits.stream().filter(f -> f.contains("n")).findFirst ();

D. Optional result = fruits.stream().anyMatch(f -> f.contains("n"));

Show Answer
Questions 2

Given:

And the command: java Main Helloworld What is the result ?

A. Input: Echo:

B. Input: Helloworld Echo: Helloworld

C. Input: Then block until any input comes from System.in.

D. Input: Echo: Helloworld

E. A NullPointerException is thrown at run time.

Show Answer
Questions 3

Given:

When is the readObject method called?

A. before this object is deserialized

B. after this object is deserialized

C. before this object Is serialized

D. The method is never called.

E. after this object is serialized

Show Answer
Questions 4

Given:

Which two are secure serialization of these objects? (Choose two.)

A. Define the serialPersistentFields array field.

B. Declare fields transient.

C. Implement only readResolve to replace the instance with a serial proxy and not writeReplace.

D. Make the class abstract.

E. Implement only writeReplace to replace the instance with a serial proxy and not readResolve.

Show Answer
Questions 5

Which interface in the java.util.function package can return a primitive type?

A. ToDoubleFunction

B. Supplier

C. BiFunction

D. LongConsumer

Show Answer More Questions

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