Latest 2026 Realistic Verified 1Z0-819 Dumps - 100% Free 1Z0-819 Exam Dumps [Q48-Q70]

Latest 2026 Realistic Verified 1Z0-819 Dumps - 100% Free 1Z0-819 Exam Dumps

Get 2026 Updated Free Oracle 1Z0-819 Exam Questions and Answer

Oracle 1z1-819 (Java SE 11 Developer) certification exam is a widely recognized and respected certification for professionals who want to demonstrate their expertise in Java programming. Java SE 11 Developer certification is designed for individuals who have a strong understanding of Java SE 11 fundamentals and can apply this knowledge to real-world scenarios.

NEW QUESTION # 48
Given:

Which statement on line 1 enables this code to compile?

A. Function<int, int> f = n > n * 2;
B. Function<Integer> f = n > n * 2;
C. Function f = n > n * 2;
D. Function<Integer, Integer> f = n > n * 2;
E. Function<int> f = n > n * 2;

Answer: D

Explanation:

NEW QUESTION # 49
Given the code fragment:

What is the result?

A. false true true
B. false true false
C. false false true
D. true false false

Answer: B

Explanation:

NEW QUESTION # 50
Given:

What is the output?

A. I am an array
B. I am an object array
C. I am an object
D. The compilation fails due to an error in line 1.

Answer: C

NEW QUESTION # 51
Given:

What is the result?

A. 0
B. 1
C. An exception is thrown at runtime.
D. 2

Answer: B

Explanation:

NEW QUESTION # 52
Given:

Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)

A. setGCount(g);
B. cCount = setCCount(c);
C. setCCount(c) = cCount;
D. tCount = tCount;
E. aCount = a;

Answer: D,E

NEW QUESTION # 53
Given:

Which statement is true?

A. The code fails to compile as try-try-resource needs a variable declaration such as MyResource r1= res1; MyResource r2 = res2;.
B. The code fails to compile as res2 should be declared as final.
C. The code fails to compile as MyResource must implement Closeable.
D. The code compiles successfully.

Answer: D

NEW QUESTION # 54
Given:

Which three are correct? (Choose three.)

A. b1.foo(li) prints Hello world!
B. f1.foo(li) prints Hola Mundo!
C. b1.foo(li) prints Bonjour le monde!
D. f2.foo(li) prints Hello world!
E. f1.foo(li) prints Hello world!
F. f2.foo(li) prints Hola Mundo!
G. b1.foo(li) prints Hola Mundo!
H. f2.foo(li) prints Bonjour le monde!
I. f1.foo(li) prints Bonjour le monde!

Answer: A,G,I

NEW QUESTION # 55
Given:

What is the result?

A. The compilation fails at line 2.
B. The compilation fails at line 8.
C. The compilation fails at line 9.
D. Hello World

Answer: D

Explanation:

NEW QUESTION # 56
Given:

What is the result?

A. A compilation error occurs.
B. NullPointerException is thrown at line 10.
C. Hello
D. NullPointerException is thrown at line 4.

Answer: C

Explanation:

NEW QUESTION # 57
Given:

What is the result?

A. is it 1
B. An IndexOutOfBoundsException is thrown at runtime.
C. this is it 3
D. is it 0
E. this is it 2

Answer: E

Explanation:

NEW QUESTION # 58
Given:

Which three are correct? (Choose three.)

A. b1.foo(li) prints Hello world!
B. f1.foo(li) prints Hola Mundo!
C. b1.foo(li) prints Bonjour le monde!
D. f2.foo(li) prints Hello world!
E. f1.foo(li) prints Hello world!
F. f2.foo(li) prints Hola Mundo!
G. b1.foo(li) prints Hola Mundo!
H. f2.foo(li) prints Bonjour le monde!
I. f1.foo(li) prints Bonjour le monde!

Answer: A,G,I

NEW QUESTION # 59
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. Optional<String> result = fruits.stream().filter(f > f.contains ("n")).findFirst ();
B. Optional<String> result = fruits.stream().anyMatch(f > f.contains("n"));
C. String result = fruits.stream().filter(f > f.contains("n")).findAny();
D. fruits.stream().filter(f > f.contains("n")).forEachOrdered(System.out::print);

Answer: D

Explanation:

NEW QUESTION # 60
Given:

Which two lines inserted in line 1 will allow this code to compile? (Choose two.)

A. protected void walk(){}
B. public abstract void walk();
C. void walk(){}
D. private void walk(){}
E. abstract void walk();

Answer: A,B

NEW QUESTION # 61
Given:

Which expression when added at line 1 will produce the output of 1.17?

A. float z = Math.round((int)(x/y),2);
B. float z = Math.round((float)x/y*100)/(float)100;
C. float z = Math.round((float)x/y,2);
D. float z = (float)(Math.round((float)x/y*100)/100);

Answer: B

Explanation:

NEW QUESTION # 62
Given these two classes:

And given this fragment:

Which describes the fragment?

A. The code does not compile.
B. It throws IllegalMonitorStateException.
C. It is subject to deadlock.
D. It is subject to livelock.

Answer: A

NEW QUESTION # 63
Given:

executed with this command:
java Main one two three
What is the output of this class?

A. 1) one
B. 1) one2) two3) three
C. nothing
D. A java.lang.ArrayIndexOutOfBoundsException is thrown.
E. The compilation fails.

Answer: B

NEW QUESTION # 64
Given:

You wants to make the reduction operation parallelized.
Which two modifications will accomplish this?

A. Replace line 1 with int sum = numbers. Parallel ( ). Stream ( ). Reduce (0, (n, m ) -> n + m);
B. Replace line 1with int sum = number. Stream ( ) . flatMap (a -> a) .reduce (0, (n, m) -> n +m );
C. Replace line 1 with int sum = numbers. Stream (). Interate (0, a -> a+1. Reduce (0, (n m) -> n+m);
D. Replace line 1with int sum = number.stream. parallel ( ). Reduce (0, (n, m) -> n + m);
E. Replace line 1with int sum = numbers. ParallelStream ( ). Reduce (0, (n, m ) -> n + m);

Answer: B,C

NEW QUESTION # 65
Analyze the code:

Which two options can you insert inside println method to produce Global:namescope? (Choose two.)