1Z0-819 Free Practice Test

Given:
jdeps -jdkinternals C:workspace4SimpleSecurityjarclasses.jar
Which describes the expected output?

1. A. jdeps lists the module dependencies and the package names of all referenced JDK internal API
2. B. If any are found, the suggested replacements are output in the console.
3. C. jdeps outputs an error message that the -jdkinternals option requires either the -summary or the - verbose options to output to the console.
4. D. The -jdkinternals option analyzes all classes in the .jar and prints all class-level dependencies.
5. E. The -jdkinternals option analyzes all classes in the .jar for class-level dependencies on JDK internal API
6. F. If any are found, the results with suggested replacements are output in the console.

Correct Answer: A
-jdkinternals option analyzes all classes in the .jar for class-level dependencies on JDK internal APIs. If any are found, the results with suggested replacements are output in the console.

Given:

Which statement is equivalent to line 1?

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

Correct Answer: C

Given:

What is the result?

1. A. 5
2. B. 3
3. C. 23
4. D. 25
5. E. 11

Correct Answer: E

Given:
/code/a/Test.java containing:

and
/code/b/Best.java containing: package b;
public class Best { }
Which is the valid way to generate bytecode for all classes?

1. A. java /code/a/Test.java
2. B. javac –d /code /code/a/Test
3. C. java /code/a/Test.java /code/b/Best.java
4. D. java –cp /code a.Test
5. E. javac –d /code /code/a/Test.java /code/b/Best.java
6. F. javac –d /code /code/a/Test.java

Correct Answer: E

Given:

Which two are correct? (Choose two.)

1. A. The output will be exactly 2 1 3 4 5.
2. B. The program prints 1 4 2 3, but the order is unpredictable.
3. C. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.
4. D. Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.
5. E. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.

Correct Answer: BD