1z0-808 — Free Practice Questions
10 free sample questions from a bank of 206, with the correct answers and explanations. No signup required — start practising right now.
1Given: What is the result?
- 200.0 : 100.0
- 400.0 : 200.0
- 400.0 : 100.0
- Compilation fails.
Answer: C
2Given the code fragment: What is the result?
- Match 1
- Match 2
- No Match
- A NullPointerException is thrown at runtime.
Answer: A
3Which two code fragments cause a compilation error? (Choose two.)
- float flt = 100.00F;
- float flt = (float) 1_11.00;
- Float flt = 100.00;
- double y1 = 203.22; float flt = y1;
- int y2 = 100; float flt = (float) y2 ;
Answer:
4Given: What is the result?
A. B. C. D.
Answer:
5Which three statements are true about exception handling? (Choose three.)
- Only unchecked exceptions can be rethrown.
- All subclasses of the RuntimeException class are not recoverable.
- The parameter in a catch block is of Throwable type.
- All subclasses of the RuntimeException class must be caught or declared to be thrown.
- All subclasses of the RuntimeException class are unchecked exceptions.
- All subclasses of the Error class are not recoverable.
Answer:
6Given: And given the code fragment:
Book book1 = new EBook();
book1.readBook();
Which option enables the code to compile?
- Option A
- Option B
- Option C
- Option D
Answer: D
7Which two statements are true? (Choose two.)
- Error class is unextendable.
- Error class is extendable.
- Error is a RuntimeException.
- Error is an Exception.
- Error is a Throwable.
Answer:
8Given: And given the commands: What is the result?
- Java SE
- Java EE
- Compilation fails at line n1.
- A NullPointerException is thrown at runtime.
Answer: A
9Given this class: And given this main method, located in another class: Which three pieces of code, when inserted independently, set the value of amount to 100? (Choose three.)
A. B. C. D. E. F.
Answer:
10Given the code fragments: What is the result?
- Compilation fails only at line n2.
- RTool::export Tool::export
- Tool::export Tool:export
- Compilation fails only at line n1.
- Compilation fails at both line n1 and line n2.
Answer: D
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