Oracle Oracle Certifications 1Z0-815 Questions & Answers

• Question 71:

  Given:

  

  What is the result?

  A. 42

  B. The compilation fails due to an error in line 4.

  C. 17

  D. The compilation fails due to an error in line 3.

  E. The compilation fails due to an error in line 2.

  F. The compilation fails due to an error in line 1.

  G. The compilation fails due to an error in line 5.

  Correct Answer: B

  

• Question 72:

  Given:

  

  Which two statements are true if the method is added to Bar? (Choose two.)

  A. public Collection foo(Collection arg) { ... } overrides Foo.foo.

  B. public Collection foo(Stream arg) { ... } overloads Foo.foo.

  C. public List foo(Collection arg) { ... } overrides Foo.foo.

  D. public Collection foo(Collection arg) { ... } overloads Foo.foo.

  E. public Collection bar(Collection arg) { ... } overloads Foo.foo.

  F. public Iterable foo(Collection arg) { ... } overrides Foo.foo.

  Correct Answer: CF

• Question 73:

  Given the code fragment:

  

  What is the result?

  A. ab cd ef

  B. An ArrayIndexOutOfBoundsException is thrown at runtime.

  C. The compilation fails.

  D. abc def

  E. ad be cf

  Correct Answer: D

• Question 74:

  Given:

  

  executed using command: java Hello "Hello World" Hello World What is the output?

  A. An exception is thrown at runtime.

  B. Hello WorldHello World

  C. Hello World Hello World

  D. Hello WorldHelloWorld

  E. HelloHello WorldHelloWorld

  Correct Answer: C

• Question 75:

  Given:

  

  Which two constructors will compile and set the class field strings? (Choose two.)

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  E. Option E

  Correct Answer: AE

• Question 76:

  Given the code fragment:

  

  What is the result?

  A. false true true

  B. true false false

  C. false false true

  D. false true false

  Correct Answer: D

  

• Question 77:

  Given:

  

  What is the result?

  A. watermelon orange lemon grape apricot apple

  B. nothing

  C. apple apricot grape lemon orange watermelon

  D. apple orange grape lemon apricot watermelon

  Correct Answer: A

  

• Question 78:

  Given the code fragment:

  

  Which "for" loop produces the same output?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 79:

  Given:

  

  Which three classes successfully override printOne()? (Choose three.)

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  E. Option E

  F. Option F

  Correct Answer: ABC

• Question 80:

  Given:

  

  What is the result?

  A. It throws a runtime exception.

  B. Value of Euler = 2.71828

  C. The code does not compile.

  D. Value of Euler = "2.71828"

  Correct Answer: C