oracle 1z0-808 practice test

Given:

And given the code fragment:
Book book1 = new EBook();
book1.readBook();

Which option enables the code to compile?

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

Given:

What is the result?

• A. A B C D
• B. A C D
• C. A C D D
• D. A B D
• E. A B D C

Given:

Which code fragment should you use at line n1 to instantiate the dvd object successfully?

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

Given the code fragment:

Which option can replace xxx to enable the code to print 135?

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

Which statement best describes encapsulation?

• A. Encapsulation ensures that classes can be designed so that only certain fields and methods of an object are accessible from other objects.
• B. Encapsulation ensures that classes can be designed so that their methods are inheritable.
• C. Encapsulation ensures that classes can be designed with some fields and methods declared as abstract.
• D. Encapsulation ensures that classes can be designed so that if a method has an argument MyType x, any subclass of MyType can be passed to that method.

Given the code fragment from three files:

Which code fragment, when inserted at line 2, enables the code to compile?

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

Given this class:

And given this main method, located in another class:

Which three lines, when inserted independently at line n1, cause the program to print a 0 balance?

• A. acct.setAmount(-acct.getAmount());
• B. acct.amount = 0; <option D earlier>
• C. acct.setAmount(0);
• D. acct.getAmount() = 0; <option E earlier>
• E. this.amount = 0; <option A earlier>
• F. acct.changeAmount(0); <option F earlier>
• G. acct.changeAmount(-acct.amount); <option G earlier>

Given the code fragment:

Which code fragment prints red: blue: small: medium?

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

Given the code fragment:


What is the result?

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

Given the code fragment:


Which modification enables the code to print 54321?

• A. Replace line 6 with System.out. print (--x) ;
• B. At line 7, insert x --;
• C. Replace line 6 with --x; and, at line 7, insert System.out.print (x);
• D. Replace line 12 with return (x > 0) ? false: true;