Oracle 1Z0-819 Exam Dumps [2022] Practice Valid Exam Dumps Question
1Z0-819 Dumps - Grab Out For [NEW-2022] Oracle Exam
How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Length of Exam: 85 min
- No. of Questions: 60 Questions
- Passing Score: 60% or higher
- Types of questions: Performance Based Questions
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Examination Fees: $250 USD
NEW QUESTION 87
Given:
What is the result?
- A. 1.99,2.99
- B. The compilation fails.
- C. 1.99,2.99,0.0
- D. 1.99,2.99,0
Answer: B
Explanation:
NEW QUESTION 88
Given:
What is the result?
- A. 3 3 3 3
- B. 5 5 3 3
- C. 3 5 3 5
- D. 3 5 3 3
Answer: D
Explanation:
NEW QUESTION 89
Given:
Which option should you choose to enable the code to print Something happened?
- A. Add extends Exception on line 1.
Add extends GeneralException on line 2. - B. Add extends SpecificException on line 1.
Add extends GeneralException on line 2. - C. Add extends Exception on line 1.
Add extends Exception on line 2. - D. Add extends GeneralException on line 1.
Add extends Exception on line 2.
Answer: A
Explanation:
NEW QUESTION 90
Given:
jdeps -jdkinternals C:\workspace4\SimpleSecurity\jar\classes.jar
Which describes the expected output?
- A. The -jdkinternals option analyzes all classes in the .jar and prints all class-level dependencies.
- B. The -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.
- C. jdeps outputs an error message that the -jdkinternals option requires either the -summary or the - verbose options to output to the console.
- D. jdeps lists the module dependencies and the package names of all referenced JDK internal APIs. If any are found, the suggested replacements are output in the console.
Answer: D
Explanation:
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 91
Given:
Which two constructors will compile and set the class field strings? (Choose two.)
- A. Option A
- B. Option E
- C. Option B
- D. Option C
- E. Option D
Answer: B,D
NEW QUESTION 92
Which code fragment compiles?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
Explanation:
NEW QUESTION 93
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. Optional<String> result = fruits.stream().anyMatch(f -> f.contains("n"));
- 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. String result = fruits.stream().filter(f -> f.contains("n")).findAny();
Answer: B
Explanation:
NEW QUESTION 94
Given:
You wants to make the reduction operation parallelized.
Which two modifications will accomplish this?
- A. Replace line 1with int sum = numbers. ParallelStream ( ). Reduce (0, (n, m ) -> n + m);
- B. Replace line 1 with int sum = numbers. Stream (). Interate (0, a -> a+1. Reduce (0, (n m) -> n+m);
- C. Replace line 1 with int sum = numbers. Parallel ( ). Stream ( ). Reduce (0, (n, m ) -> n + m);
- D. Replace line 1with int sum = number. Stream ( ) . flatMap (a -> a) .reduce (0, (n, m) -> n +m );
- E. Replace line 1with int sum = number.stream. parallel ( ). Reduce (0, (n, m) -> n + m);
Answer: B,D
NEW QUESTION 95
Given:
What is the result?
- A. 6=(x+y)=6
- B. 6=(x+y)=42
- C. An exception is thrown at runtime.
- D. 42=(x+y)=42
- E. 42=(x+y)=6
Answer: B
Explanation:
NEW QUESTION 96
Given:
What is the result?
- A. b2
- B. b1
- C. 0
- D. 1
- E. 2
- F. b3
- G. The compilation fails due to an error in line 1.
Answer: C
Explanation:
NEW QUESTION 97
Which declaration of an annotation type is legal?
@interface Author {
- A. String name() default "";
String date();
}
@interface Author { - B. String name();
String date;
}
@interface Author { - C. String name() default "";
String date();
}
@interface Author extends Serializable { - D. String name() default null;
String date();
}
@interface Author { - E. String name();
String date default "";
}
Answer: C
NEW QUESTION 98
Given:
After which line can we insert assert i < 0 || values[i] <= values[i + 1]; to verify that the values array is partially sorted?
- A. after line 10
- B. after line 8
- C. after line 5
- D. after line 6
Answer: D
Explanation:
NEW QUESTION 99
Given:
Which two statements are valid to be written in this interface? (Choose two.)
- A. public abstract void methodB();
- B. public void methodF(){System.out.println("F");}
- C. private abstract void methodC();
- D. final void methodE();
- E. public String methodD();
- F. final void methodG(){System.out.println("G");}
- G. public int x;
Answer: A,E
NEW QUESTION 100
Given:
What is the result?
- A. Unknown
- B. TuesdayUnknown
- C. Working
- D. WorkingUnknown
- E. Tuesday
- F. The compilation fails.
Answer: A
Explanation:
NEW QUESTION 101
Given:
What is the result?
- A. 6=(x+y)=6
- B. 6=(x+y)=42
- C. An exception is thrown at runtime.
- D. 42=(x+y)=42
- E. 42=(x+y)=6
Answer: B
Explanation:
NEW QUESTION 102
Which two statements independently compile? (Choose two.)
- A. List<? extends Number> list = new ArrayList<Byte>();
- B. List<? extends Number> list = new ArrayList<Object>();
- C. List<? super Number> list = new ArrayList<Integer>();
- D. List<? super Float> list = new ArrayList<Double>();
- E. List<? super Short> list = new ArrayList<Number>();
Answer: A,E
Explanation:
NEW QUESTION 103
Given:
What is the result?
- A. 0
- B. 1
- C. An exception is thrown at runtime.
- D. 2
Answer: B
Explanation:
NEW QUESTION 104
Given:
What is the result?
- A. nullnull
- B. JoeMarry
- C. Joenull
- D. nullMary
Answer: D
Explanation:
NEW QUESTION 105
Given:
What is the result?
- A. 6 13
- B. 5 12
- C. 0 5
- D. compilation error
Answer: D
Explanation:
NEW QUESTION 106
Which code is correct?
- A. Runnable r = () > System.out::print;
- B. Runnable r = {System.out.println("Message")};
- C. Runnable r = "Message" > System.out.println();
- D. Runnable r = () -> {System.out.println("Message");};
- E. Runnable r = > System.out.println("Message");
Answer: D
NEW QUESTION 107
Given:
executed using command:
java Hello "Hello World" Hello World
What is the output?
- A. Hello WorldHelloWorld
- B. HelloHello WorldHelloWorld
- C. Hello World Hello World
- D. Hello WorldHello World
- E. An exception is thrown at runtime.
Answer: C
NEW QUESTION 108
Given:
What is the result?
- A. Unknown
- B. TuesdayUnknown
- C. Working
- D. WorkingUnknown
- E. Tuesday
- F. The compilation fails.
Answer: A
Explanation:
NEW QUESTION 109
Given:
Which two lines inserted in line 1 will allow this code to compile? (Choose two.)
- A. void walk(){}
- B. abstract void walk();
- C. public abstract void walk();
- D. protected void walk(){}
- E. private void walk(){}
Answer: C,D
NEW QUESTION 110
Given:
and the commands:
What is the result on execution of these commands?
Test.class - > java.sql -> java.base
- A. On execution, the jdepscommand displays an error.
Test.class -> java.base - B. Test.class - > java.sql
java.sql -> java.base - C. Test.class - > java.sql
Test.class -> java.base - D.
Answer: C
NEW QUESTION 111
......
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