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1Z0-819 Dumps

Free 1Z0-819 Exam Dumps

Question 41

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

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

Correct Answer:BC

Question 42

Given:
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What must be added in line 1 to compile this class?

A. catch(IOException e) { }
B. catch(FileNotFoundException | IndexOutOfBoundsException e) { }
C. catch(FileNotFoundException | IOException e) { }
D. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }
E. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }

Correct Answer:A

Question 43

Given:
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Which statement is equivalent to line 1?

A. double totalSalary = list.stream().map(e > e.getSalary() * ratio).reduce (bo).ifPresent (p > p.doubleValue());
B. double totalSalary = list.stream().mapToDouble(e > e.getSalary() * ratio).sum;
C. double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce (bo).orElse(0.0);
D. double totalSalary = list.stream().mapToDouble(e > e.getSalary() * ratio).reduce(starts, bo);

Correct Answer:C
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Question 44

Which two safely validate inputs? (Choose two.)

A. Delegate numeric range checking of values to the database.
B. Accept only valid characters and input values.
C. Use trusted domain-specific libraries to validate inputs.
D. Assume inputs have already been validated.
E. Modify the input values, as needed, to pass validation.

Correct Answer:AB

Question 45

Given:
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What is the result?

A. A ClassCastException is thrown at runtime.
B. AnotherClass#methodA()AnotherClass#methodA()
C. The compilation fails.
D. SomeClass#methodA()AnotherClass#methodA()
E. AnotherClass#methodA()SomeClass#methodA()
F. SomeClass#methodA()SomeClass#methodA()

Correct Answer:C
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