[Nov 16, 2022] Pass Java and Middleware 1z1-808 Exam With 225 Questions
Ultimate Guide to Prepare Free Oracle 1z1-808 Exam Questions and Answer
NEW QUESTION 71
Given:
What is the result?
- A. True false
- B. True null
- C. A NullPointerException is thrown at runtime
- D. Compilation fails
Answer: A
NEW QUESTION 72
Which three are advantages of the Java exception mechanism?
- A. Provides a set of standard exceptions that covers all the possible errors
- B. Improves the program structure because exceptions must be handled in the method in which they occurred
- C. Allows the creation of new exceptions that are tailored to the particular program being created
- D. Improves the program structure because the error handling code is separated from the normal program function
- E. Improves the program structure because the programmer can choose where to handle exceptions
Answer: B,D,E
Explanation:
Explanation: References:
NEW QUESTION 73
Given the code fragment:
Assume that the system date is June 20, 2014. What is the result?
A:
B:
C: Compilation fails.
D: A DateParseExceptionis thrown at runtime.
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: A
NEW QUESTION 74
Given the code fragment:
int[] array = {I, 2, 3, 4, 5};
And given the requirements:
-Process all the elements of the array in the order of entry. -Process all the elements of the array in the reverse order of entry. -Process alternating elements of the array in the order of entry.
Which two statements are true?
- A. Requirement 1 can be implemented by using the enhanced for loop.
- B. Requirements 1, 2, and 3 can be implemented by using the enhanced for loop.
- C. Requirements 2 and 3 CANNOT be implemented by using the standard for loop.
- D. Requirement 3 CANNOT be implemented by using either the enhanced for loop or the standard for loop.
- E. Requirements 1, 2, and 3 can be implemented by using the standard for loop.
Answer: E
NEW QUESTION 75
Given the code fragment:
What could expression1 and expression2 be, respectively, in order to produce output -8, 16?
- A. A + +, b - -
- B. + +a, - -b
- C. A+ +, - - b
- D. + +a, b- -
Answer: A
NEW QUESTION 76
Given:
Acc.java:
Which statement is true?
- A. Both p and s are accessible by obj.
- B. Only s is accessible by obj.
- C. Both r and s are accessible by obj.
- D. p, r, and s are accessible by obj.
Answer: B
NEW QUESTION 77
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. An exception is thrown at runtime.
- D. 2
Answer: C
NEW QUESTION 78
Given the code fragment:
What is the result?
- A. Compilation fails only at line n2.
- B. Compilation fails at both line n1 and line n2.
- C. Jesse 25Walter 52
- D. Compilation fails only at line n1.
Answer: C
NEW QUESTION 79
Which one of the following code examples uses valid Java syntax?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: A
Explanation:
Explanation/Reference:
Reference: https://docs.oracle.com/javase/tutorial/getStarted/application/
NEW QUESTION 80
Given:
What is the result?
A:
B:
C:
D:
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
NEW QUESTION 81
Given:
What is the result?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
NEW QUESTION 82
Given:
interface Pet { }
class Dog implements Pet { }
public class Beagle extends Dog{ }
Which three are valid?
- A. Pet e = new Beagle();
- B. Dog f = new Pet();
- C. Pet b = new Pet();
- D. Dog d = new Beagle();
- E. Beagle c = new Dog();
- F. Pet a = new Dog();
Answer: A,D,F
Explanation:
Incorrect:
Not B, not C: Pet is abstact, cannot be instantiated.
Not F: incompatible type. Required Beagle, found Dog.
NEW QUESTION 83
Given:
What is the result?
- A. An exception is thrown at runtime
- B. String main 1 2 3
- C. String main 123
- D. String main 1
Answer: D
NEW QUESTION 84
Given:
What is the result?
- A. a, ei, o
- B. e, eo, o
- C. e, ei, o
- D. a,eo, o
Answer: D
NEW QUESTION 85
Given the code fragment:
What is the result?
- A. Compilation fails only at line n2.
- B. Compilation fails at both line n1 and line n2.
- C. Jesse 25Walter 52
- D. Compilation fails only at line n1.
Answer: C
NEW QUESTION 86
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