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Free demo questions for Oracle 1Z0-819 Exam Dumps Below:

NEW QUESTION 1
Which two modules include APIs in the Java SE Specification? (Choose two.)

  • A. java.logging
  • B. java.desktop
  • C. javafx
  • D. jdk.httpserver
  • E. jdk.jartool

Answer: AD

NEW QUESTION 2
Given the declaration:
1Z0-819 dumps exhibit
Examine this code fragment:
/* Loc1 */ class ProcessOrders { ... }
Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)

  • A. @Resource(priority=100)
  • B. @Resource(priority=0)
  • C. @Resource(name=“Customer1”, priority=100)
  • D. @Resource(name=“Customer1”)
  • E. @Resource

Answer: AB

NEW QUESTION 3
Given:
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What is the type of the local variable x?

  • A. Character
  • B. char
  • C. String[ ]
  • D. String

Answer: D

NEW QUESTION 4
Given:
jdeps -jdkinternals C:\workspace4\SimpleSecurity\jar\classes.jar
Which describes the expected output?

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

Answer: A

Explanation:
-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.

NEW QUESTION 5
Given:
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What is the result?

  • A. 42
  • B. The compilation fails due to an error in line 4.
  • C. 17
  • D. The compilation fails due to an error in line 3.
  • E. The compilation fails due to an error in line 2.
  • F. The compilation fails due to an error in line 1.
  • G. The compilation fails due to an error in line 5.

Answer: A

NEW QUESTION 6
Given the code fragment:
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What is the result?

  • A. -1 : 2
  • B. 2 : -1
  • C. 2 : 3
  • D. 3 : 0

Answer: B

NEW QUESTION 7
Given:
1Z0-819 dumps exhibit
What is the result?

  • A. null
  • B. nothing
  • C. It fails to compile.
  • D. java.lang.IllegalAccessException is thrown.
  • E. Student

Answer: C

NEW QUESTION 8
Given:
1Z0-819 dumps exhibit
What is known about the Sportscar class?

  • A. The Sportscar class is a subclass of Automobile and inherits its methods.
  • B. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
  • C. The Sportscar class is a superclass that has more functionality than the Automobile class.
  • D. The Sportscar class inherits the setTurbo method from the superclass Automobile.

Answer: A

NEW QUESTION 9
Given the Person class with age and name along with getter and setter methods, and this code fragment:
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What will be the result?

  • A. Aman Tom Peter
  • B. Tom Aman Peter
  • C. Aman Peter Tom
  • D. Tom Peter Aman

Answer: C

NEW QUESTION 10
Given:
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Which two methods modify field values? (Choose two.)

  • A. setAllCounts
  • B. setACount
  • C. setGCount
  • D. setCCount
  • E. setTCount

Answer: AC

NEW QUESTION 11
Given:
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and:
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Which code, when inserted on line 10, prints the number of unique localities from the roster list?

  • A. .map(Employee::getLocality).distinct().count();
  • B. map(e > e.getLocality()).count();
  • C. .map(e > e.getLocality()).collect(Collectors.toSet()).count();
  • D. .filter(Employee::getLocality).distinct().count();

Answer: D

NEW QUESTION 12
Which two commands are used to identify class and module dependencies? (Choose two.)

  • A. jmod describe
  • B. java Hello.java
  • C. jdeps --list-deps
  • D. jar --show-module-resolution
  • E. java --show-module-resolution

Answer: CE

NEW QUESTION 13
Given:
1Z0-819 dumps exhibit
Which is true?

  • A. The code compiles but does not print any result.
  • B. The code prints 25.
  • C. The code does not compile.
  • D. The code throws an exception at runtime.

Answer: C

NEW QUESTION 14
Given:
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What is the output?

  • A. Hello world!Bonjour le monde!
  • B. Hello world!Hello world!
  • C. Bonjour le monde!Hello world!
  • D. Bonjour le monde!Bonjour le monde!

Answer: C

Explanation:
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NEW QUESTION 15
Which command line runs the main class com.acme.Main from the module com.example?

  • A. java --module-path mods com.example/com.acme.Main
  • B. java –classpath com.example.jar com.acme.Main
  • C. java --module-path mods -m com.example/com.acme.Main
  • D. java -classpath com.example.jar –m com.example/com.acme.Main

Answer: D

NEW QUESTION 16
Given:
1Z0-819 dumps exhibit
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<Number> foo(Set<CharSequence> m) { ... }
  • C. public List<Integer> foo(TreeSet<String> m) { ... }
  • D. public List<Integer> foo(Set<String> m) { ... }
  • E. public List<Object> foo(Set<CharSequence> m) { ... }
  • F. public ArrayList<Integer> foo(Set<String> m) { ... }

Answer: BC

NEW QUESTION 17
Given the code fragment:
1Z0-819 dumps exhibit
What is the output?

  • A. The compilation fail
  • B. [-1, -2, -3]
  • C. [-3, -2, -1]
  • D. A runtime exception is thrown.

Answer: D

NEW QUESTION 18
Given:
var fruits = List.of(“apple”, “orange”, “banana”, “lemon”);
You want to examine the first element that contains the character n. Which statement will accomplish this?

  • A. String result = fruits.stream().filter(f > f.contains(“n”)).findAny();
  • B. fruits.stream().filter(f > f.contains(“n”)).forEachOrdered(System.out::print);
  • C. Optional<String> result = fruits.stream().filter(f > f.contains (“n”)).findFirst ();
  • D. Optional<String> result = fruits.stream().anyMatch(f > f.contains(“n”));

Answer: B

Explanation:
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NEW QUESTION 19
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