Oracle 1Z0-815 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1Z0-815
Exam Name/Title: Java SE 11 Programmer I
Certification Provider: Oracle
Corresponding Certification: Oracle Java Platform

Exam Questions: 125
Updated On: Jul 11, 2026

Question #41

Given:

What is the result?

A. The code does not compile.

B. Value of Euler = 2.71828

C. It throws a runtime exception.

D. Value of Euler = "2.71828"

Discussion 0

Correct Answer: A Vote an answer

Question #42

Given:

What is the result?

A. The compilation fails.

B. Map: 0 Keys: 4 Values: 4

C. Map: 4 Keys: 4 Values: 4

D. Map: 0 Keys: 0 Values: 0

E. Map: 4 Keys: 0 Values: 0

Discussion 0

Correct Answer: E Vote an answer

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Question #43

Given:

If file "App.config" is not found, what is the result?

A. The compilation fails.

B. Configuration is OK

C. nothing

D. Exception in thread "main" java.lang.Error:
Fatal Error: Configuration File, App.config, is missing.

Discussion 0

Correct Answer: A Vote an answer

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Question #44

Given:

What is the result?

A. null

B. Dr. Who

C. An exception is thrown at runtime.

D. Dr. Null

Discussion 0

Correct Answer: A Vote an answer

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Question #45

Given:

Which two statements can be added at line 1 in Bar to successfully compile it? (Choose two.)

A. public ArrayList<Integer> foo(Set<String> m) { ... }

B. public List<Object> foo(Set<CharSequence> m) { ... }

C. public List<Integer> foo(Set<String> m) { ... }

D. public List<Integer> foo(TreeSet<String> m) { ... }

E. public ArrayList<Number> foo(Set<CharSequence> m) { ... }

F. public List<Integer> foo(Set<CharSequence> m) { ... }

Discussion 0

Correct Answer: A,B Vote an answer

Question #46

Which describes an aspect of Java that contributes to high performance?

A. Java prioritizes garbage collection.

B. Java automatically parallelizes code execution.

C. Java monitors and optimizes code that is frequently executed.

D. Java has a library of built-in functions that can be used to enable pipeline burst execution.

Discussion 0

Correct Answer: A Vote an answer

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Question #47

Given:

What is the output?

A. Bonjour le monde!
Hello world!

B. Hello world!
Bonjour le monde!

C. Hello world!
Hello world!

D. Bonjour le monde!
Bonjour le monde!

Discussion 0

Correct Answer: A Vote an answer

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Question #48

Given the formula to calculate a monthly mortgage payment:

and these declarations:

How can you code the formula?

A. m = p * (r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1);

B. m = p * r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1;

C. m = p * ((r * Math.pow(1 + r, n) / (Math.pow(1 + r, n)) - 1));

D. m = p * (r * Math.pow(1 + r, n) / (Math.pow(1 + r, n) - 1));

Discussion 0

Correct Answer: C Vote an answer

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