Oracle 1Z0-815 Online Practice Questions and Exam Preparation

Oracle 1Z0-815 Online Questions & Answers

• Question 1:

  Given:

  

  What is the result?

  A. 2,3 4,3 4,5
  B. 2,3 4,5 4,5
  C. 2,5 4,5 4,5
  D. 2,3 4,5 4,3
  C. 2,5 4,5 4,5

  ---

  

• Question 2:

  Given:

  

  Which two method implementations are correct, when inserted independently in line 1? (Choose two.)

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  A. Option A
  D. Option D

• Question 3:

  Which statement about access modifiers is correct?

  A. An instance variable can be declared with the static modifier.
  B. A local variable can be declared with the final modifier.
  C. An abstract method can be declared with the private modifier.
  D. An inner class cannot be declared with the public modifier.
  E. An interface can be declared with the protected modifier.
  E. An interface can be declared with the protected modifier.

  ---

  Reference: https://javabeginnerstutorial.com/core-java-tutorial/instance-variable-java/

• Question 4:

  Given:

  

  executed with this command:

  java Main one two three

  What is the result?

  A. 0). one
  B. 0). one 1). two 2). three
  C. The compilation fails.
  D. It creates an infinite loop printing: 0). one 1). two 1). two ...
  E. A java.lang.NullPointerException is thrown.
  D. It creates an infinite loop printing: 0). one 1). two 1). two ...

• Question 5:

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

• Question 6:

  Given this requirement:

  Module vehicle depends on module part and makes its com.vehicle package available for all other modules.

  Which module-info.java declaration meets the requirement?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

• Question 7:

  Given:

  

  What is the type of x?

  A. char
  B. List
  C. String
  D. List
  B. List

• Question 8:

  Which two modules include APIs in the Java SE Specification? (Choose two.)

  A. java.logging
  B. java.desktop
  C. javafx
  D. jdk.httpserver
  E. jdk.jartool
  A. java.logging
  D. jdk.httpserver

  ---

  Reference: https://docs.oracle.com/javase/9/docs/api/overview-summary.html

• Question 9:

  Given:

  

  What is the result?

  A. Dr. Who
  B. Dr. Null
  C. An exception is thrown at runtime.
  D. null
  D. null

  ---

  

• Question 10:

  Given:

  

  What is the output?

  A. Hello world! Bonjour le monde!
  B. Hello world! Hello world!
  C. Bonjour le monde! Hello world!
  D. Bonjour le monde! Bonjour le monde!
  C. Bonjour le monde! Hello world!

  ---