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Oracle Java SE 11 Developer Sample Questions (Q258-Q263):

NEW QUESTION # 258
Which code fragment prints 100 random numbers?

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

Answer: A

NEW QUESTION # 259
Given:

When run and all three files exist, what is the state of each reader on Line 1?

A. Only reader1 has been closed.
B. All three readers are still open.
C. All three readers have been closed.
D. The compilation fails.

Answer: D

NEW QUESTION # 260
Given:

A. The compilation fails.
B. adf
C. Abcd
D. Abdf
E. Abd

Answer: C

NEW QUESTION # 261
Given:

You want the code to produce this output:
John
Joe
Jane
Which code fragment should be inserted on line 1 and line 2 to produce the output?

A. Insert Comparator<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.
B. Insert Comparator<Person> on line 1.
Insert
public int compare(Person person) {
return person.name.compare(this.name);
}
on line 2.
C. Insert Comparator<Person> on line 1.
Insert
public int compareTo(Person person) {
return person.name.compareTo(this.name);
}
on line 2.
D. Insert Comparable<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

Answer: C

NEW QUESTION # 262
Given:

Which two statements can be added at line 1 in Bar to successfully compile it? (Choose two.)

A. public List<Integer> foo(TreeSet<String> m) { ... }
B. public List<Integer> foo(Set<String> m) { ... }
C. public List<Object> foo(Set<CharSequence> m) { ... }
D. public ArrayList<Integer> foo(Set<String> m) { ... }
E. public ArrayList<Number> foo(Set<CharSequence> m) { ... }
F. public List<Integer> foo(Set<CharSequence> m) { ... }

Answer: A,E

NEW QUESTION # 263
......

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1Z0-819 Exam Lab Questions, Latest 1Z0-819 Test Online

Quiz 2025 Professional 1Z0-819: Java SE 11 Developer Exam Lab Questions

Oracle Java SE 11 Developer Sample Questions (Q258-Q263):

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