Updated Jan-2023 Pass 1z1-819 Exam - Real Practice Test Questions
Download Free Oracle 1z1-819 Real Exam Questions
How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Passing Score: 60% or higher
- No. of Questions: 60 Questions
- Length of Exam: 85 min
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
Difficulty in Attempting Java SE 11 Developer Exam Number: 1Z0-819
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Questions in the certification examination are based on the real-world scenarios and cater to the real-time problems implementation difficulties, hence along with all the training material and tutorial it is of utmost importance for the candidate to possess practical knowledge and experience of working in the field of Java technology.
Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Java Object-Oriented Approach
- Working with Java data types
- Database Applications with JDBC
- Annotations
NEW QUESTION 38
Given:
Which three actions implement Java SE security guidelines? (Choose three.)
- A. Change line 2 to protected volatile String[] names;.
- B. Change line 2 to private final String[] names;.
- C. Change the getNames() method name to get$Names().
- D. Change line 6 to public synchronized String[] getNames() {.
- E. Change line 7 to return names.clone();.
- F. Change line 4 to this.names = names.clone();.
- G. Change line 3 to private Secret(String[] names) {.
Answer: A,B,G
NEW QUESTION 39
Given:
What is the result?
- A. b1
- B. b3
- C. 0
- D. 1
- E. The compilation fails due to an error in line 1.
- F. 2
- G. b2
Answer: F
Explanation:
NEW QUESTION 40
Given:
What is the result?
- A. A ClassCastException is thrown at runtime.
- B. AnotherClass#methodA()SomeClass#methodA()
- C. AnotherClass#methodA()AnotherClass#methodA()
- D. The compilation fails.
- E. SomeClass#methodA()SomeClass#methodA()
- F. SomeClass#methodA()AnotherClass#methodA()
Answer: D
Explanation:
NEW QUESTION 41
Given:
What is the result?
- A. abcd
- B. The compilation fails.
- C. abdf
- D. abd
- E. adf
Answer: A
NEW QUESTION 42
Which method throws an exception for not-a-number and infinite input values?
A)
B)
C)
D)
- A. Option C
- B. Option D
- C. Option B
- D. Option A
Answer: D
NEW QUESTION 43
Given the code fragment:
What is the result?
- A. 2 4 6 B 10
- B. 2 4 6 8
- C. 1 3 5 7 9 11
- D. 13 5 7 9
Answer: C
NEW QUESTION 44
Given:
What is the result?
- A.
- B. The compilation fails.
[0). D, | 1). i, | 2). a] - C. ArrayIndexOutOfBounds Exception is thrown at runtime.
- D. [). o, | 1). a, | 2).]
- E. [0). o, | 1). i, | 2). r]
Answer: B
NEW QUESTION 45
Your organization makes mlib.jar available to your cloud customers. While working on a new feature for mlib.jar, you see that the customer visible method public void enableService(String hostName, String portNumber) executes this code fragment
and you see this grant is in the security policy file:
What security vulnerability does this expose to your cloud customer's code?
- A. SQL injection attack against the specified host and port
- B. privilege escalation attack against the OS running the customer code
- C. denial of service attack against any reachable machine
- D. none because the customer code base must also be granted SocketPermission
- E. XML injection attack against any mlib server
Answer: A
NEW QUESTION 46
Given the code fragment:
What is the result?
A)
B)
C)
D)
- A. Option C
- B. Option D
- C. Option A
- D. Option B
Answer: A
NEW QUESTION 47
Given:
Which two changes need to be made to make this class compile? (Choose two.)
- A. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
- B. Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;
- C. Change Line 1 to a class:public class API {
- D. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;
- E. Change Line 1 to an abstract class:public abstract class API {
Answer: B,C
NEW QUESTION 48
Given:
If file "App.config" is not found, what is the result?
- A. Configuration is OK
- B. Exception in thread "main" java.lang.Error:Fatal Error: Configuration File, App.config, is missing.
- C. The compilation fails.
- D. nothing
Answer: C
Explanation:
NEW QUESTION 49
Given:
What is known about the Sportscar class?
- A. The Sportscar class is a superclass that has more functionality than the Automobile class.
- B. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
- C. The Sportscar class inherits the setTurbo method from the superclass Automobile.
- D. The Sportscar class is a subclass of Automobile and inherits its methods.
Answer: D
NEW QUESTION 50
Given:
String originalPath = "data\\projects\\a-project\\..\\..\\another-project"; Path path = Paths.get(originalPath); System.out.print(path.normalize()); What is the result?
- A. data\another-project
- B. data\projects\a-project\..\..\another-project
- C. data\projects\a-project\another-project
- D. data\\projects\\a-project\\..\\..\\another-project
Answer: B
Explanation:
NEW QUESTION 51
Given:
What is the result?
- A. 2,54,54,5
- B. 2,34,54,5
- C. 2,34,54,3
- D. 2,34,34,5
Answer: A
Explanation:
NEW QUESTION 52
Given:
What is the result?
- A. Student
- B. It fails to compile.
- C. null
- D. nothing
- E. java.lang.IllegalAccessException is thrown.
Answer: B
NEW QUESTION 53
Given:
and
What is the result?
Joe
- A. null
null - B. Marry
null - C. null
- D. Mary
Joe
Answer: A
Explanation:
NEW QUESTION 54
Given the code fragment:
What is the result?
- A. 2 : 3
- B. 3 : 0
- C. 2 : -1
- D. -1 : 2
Answer: C
NEW QUESTION 55
Which three initialization statements are correct? (Choose three.)
- A. boolean true = (4 == 4);
- B. String contact# = "(+2) (999) (232)";
- C. float x = 1.99;
- D. byte b = 10;char c = b;
- E. int x = 12_34;
- F. int[][] e = {{1,1},{2,2}};
- G. short sh = (short)'A';
Answer: E,F,G
NEW QUESTION 56
Given:
var data = new ArrayList<>();
data.add("Peter");
data.add(30);
data.add("Market Road");
data.set(1, 25);
data.remove(2);
data.set(3, 1000L);
System.out.print(data);
What is the output?
- A. An exception is thrown at run time.
- B. [Market Road, 1000]
- C. [Peter, 25, null, 1000]
- D. [Peter, 30, Market Road]
Answer: A
Explanation:
NEW QUESTION 57
Given:
This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?
- A. Consumer consumer = (String args) -> System.out.print(args);
- B. Consumer consumer = msg -> { return System.out.print(msg); };
- C. Consumer consumer = System.out::print;
- D. Consumer consumer = var arg -> {System.out.print(arg);};
Answer: C
Explanation:
NEW QUESTION 58
Which code fragment prints 100 random numbers?
- A. Option C
- B. Option A
- C. Option B
- D. Option D
Answer: D
NEW QUESTION 59
......
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