Oracle Practice Quiz: Oracle Certified Associate (OCA) Java Programmer Quiz 1

Oracle Practice Quiz: Oracle Certified Associate (OCA) Java Programmer Quiz 1 (15 Questions)

1. Given the following:



What is the result?

• Nothing
• An exception could be thrown at runtime.
• 65432
• 654321
• 123456
• 12345

2. Given the following:



What is the result?

• 0
• An uncaught exception is thrown at runtime.
• Compilation fails.
• No output
• Error

3. Given the following:

A and E are classes
B and D are interfaces
C is an abstract class

Which statements are true? (Choose three)

• class F implements B{ }
• class F implements B,C{ }
• class F extends E{ }
• class F implements B,D{ }
• class F extends A,E{ }

4. Given the following:

A and E are classes
B and D are interfaces

Which statements are true? (Choose two)

• interface F extends B,D{ }
• interface F extends D{ }
• interface F implements D{ }
• interface F extends E{ }
• interface F implements B,D{ }

5. Given the following:



What is the result?

NOTE: The keyword "instanceof" is use to check whether an object is of a particular type.

• Will produce output as false.
• Will produce output as true.
• Compilation fails due to error at line 3.
• Length of this array is 3.
• Compilation fails due to error at line 4.

6. Given the following:



What is the result?

• Compilation fails.
• false true
• true true
• true false
• false false

7. Given the following:



What is the output?

• Compilation fails due to line 3.
• Compilation fails due to line 4.
• 5
• An exception will be thrown in runtime.
• 2
• 3

8. Which of the following are legal identifiers? (Choose three)

• getSize
• 1stName
• _4_
• $
• @name

9. Given the following:



What is the result?

• 18
• 10
• Compilation fails.
• Output is unpredictable.
• 8

10. Given the following:



What is the result?

• A runtime exception will be thrown.
• 4
• Compilation fails.
• 10
• 5

11. Given the following:



What is the result?

• 1 John 22 1 John 22
• 1 John 25 1 John 22
• Compilation fails.
• ClassCastException is thrown at runtime.
• 1 John 25 1 John 25

12. Given the following:



What is the result?

• Compilation fails.
• 20
• 22
• 24
• An exception is thrown at runtime.

13. Given the following:



What is the result?

• Java SE 6
• Compilation fails.
• Java SE 7
• Java
• Java SE

14. Given the following:



What is the result?

• 1
• 4
• 5
• 3
• 2

15. Given the following:



What is the result?

• Compilation fails due to an error on line 7.
• 0
• 2
• Compilation fails due to an error on line 12.
• Compilation fails due to an error on line 8.