1Z1-804 Exam Training Practice Tests (Oracle Java SE 7 Programmer II)]

Question 1

Given:
StringBuffer b = new StringBuffer("3"); System.out.print(5+4+b+2+1);
What is the result?

A. 9321 B. Output is Similar to: 9java.lang.StringBuffer@100490121. C. Compilation fails. D. 54321 E. 933 F. 5433

Correct Answer: C

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Question 2

Given:

What is the result?

A. class java.lang.arrayIndexOutOfBoundException B. class MarkOutOfBoundException C. Compilation fails. D. 78 class java.lang.Array.IndexOutOfBoundException

Correct Answer: C

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Question 3

Given two classes in separate files: Which two import statements can make the a.b.parent class compliable?

A. import a.b.c.Parent; B. import a.b.*; C. import a.*; D. import a.b.c.Child; E. import a.b.c.*;

Correct Answer: D,E

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Question 4

Given:

Which statement is true?

A. Instances of car can invoke convertible methods. B. SportsCar must implement methods define by convertible. C. SportsCar must implement methods from TurboVehicle and steerable D. SportsCar must override methods defined by car.

Correct Answer: B

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Question 5

Which two are true about Singletons?

A. Singletons can be designed to be thread-safe. B. A Singleton must implement serializable. C. A Singleton has only the default constructor. D. A Singleton implements a factory method. E. A Singleton improves a class's cohesion.

Correct Answer: A,D

Question 6

Given: What is the result?

A. John George Paul Ringo B. Compilation fails C. An exception is thrown at runtime D. John-.-George-.-Paul-.-Ringo E. John George Paul -Ringo

Correct Answer: A

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Oracle Java SE 7 Programmer II - 1Z1-804 Exam Practice Test