Oracle 1Z0-819 Actual Free Exam Questions & Community Discussion
Given:
What must be added in line 1 to compile this class?
What must be added in line 1 to compile this class?
Correct Answer: D
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Given the Person class with age and name along with getter and setter methods, and this code fragment:
What will be the result?
What will be the result?
Correct Answer: B
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Given:
Which two statements are valid to be written in this interface? (Choose two.)
Which two statements are valid to be written in this interface? (Choose two.)
Correct Answer: C,E
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Given TripleThis.java:
Compiling TripleThis.java gives this compiler warning:
Note: TripleThis.java uses unchecked or unsafe operations.
Which two replacements done together remove this compiler warning?
Compiling TripleThis.java gives this compiler warning:
Note: TripleThis.java uses unchecked or unsafe operations.
Which two replacements done together remove this compiler warning?
Correct Answer: D,E
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Given this enum declaration:
Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?
Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?
Correct Answer: A
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Given:
You want to obtain the Stream object on reading the file. Which code inserted on line 1 will accomplish this?
You want to obtain the Stream object on reading the file. Which code inserted on line 1 will accomplish this?
Correct Answer: A
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Assuming the user credentials are correct, which expression will create a Connection?
Correct Answer: C
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Given:
What is the result?
What is the result?
Correct Answer: E
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Your organization makes mlib.jar available to your cloud customers. While working on a new feature for mlib.jar, you see that the customer visible method public void enableService(String hostName, String portNumber) executes this code fragment
and you see this grant is in the security policy file:
What security vulnerability does this expose to your cloud customer's code?
and you see this grant is in the security policy file:
What security vulnerability does this expose to your cloud customer's code?
Correct Answer: B
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Which code fragment added to line 1 enables the code to compile and print Hello Joe?
Correct Answer: D
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