Online 1z1-819 Test Brain Dump Question and Test Engine
Real Oracle 1z1-819 Exam Dumps with Correct 225 Questions and Answers
Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Java I/O API
- Java Platform Module System
- Java Object-Oriented Approach
- Working with Java data types
- Database Applications with JDBC
- Annotations
NEW QUESTION 127 
Why does this compilation fail?
- A. The method Y. print (object...) cannot override the final method x.print (object....).
- B. The method print (object) and the method print (object...) are duplicates of each other.
- C. The method x. print (object) is not accessible to Y.
- D. The method Y. print (object) does not call the method super.print (object)
- E. In method x. print (Collection), system. Out :: prints is an invalid Java identifier.
Answer: B
NEW QUESTION 128
Given:
What is the result?
- A. 0
- B. 1
- C. 2
- D. An exception is thrown at runtime.
Answer: A
Explanation:
NEW QUESTION 129
Given:
jdeps -jdkinternals C:\workspace4\SimpleSecurity\jar\classes.jar
Which describes the expected output?
- A. 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.
- B. The -jdkinternals option analyzes all classes in the .jar and prints all class-level dependencies.
- C. 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.
- D. jdeps outputs an error message that the -jdkinternals option requires either the -summary or the - verbose options to output to the console.
Answer: C
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 130
Given:
What is the result?
- A. The compilation fails due to an error in line 1.
- B. b2
- C. b1
- D. b3
- E. 0
- F. 1
- G. 2
Answer: F
Explanation:
NEW QUESTION 131
Given:
What is known about the Sportscar class?
- A. The Sportscar class inherits the setTurbo method from the superclass Automobile.
- B. The Sportscar class is a superclass that has more functionality than the Automobile class.
- C. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
- D. The Sportscar class is a subclass of Automobile and inherits its methods.
Answer: D
NEW QUESTION 132
Given:
What is the result?
- A. 42=(x+y)=42
- B. 6=(x+y)=42
- C. 42=(x+y)=6
- D. An exception is thrown at runtime.
- E. 6=(x+y)=6
Answer: B
Explanation:
NEW QUESTION 133
Given:
Which two are correct? (Choose two.)
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: B,D
NEW QUESTION 134
Given:
List<String> list1 = new ArrayList<>();
list1.add("A");
list1.add("B");
List list2 = List.copyOf(list1);
list2.add("C");
List<List<String>> list3 = List.of(list1, list2);
System.out.println(list3);
What is the result?
- A. [[A, B, C], [A, B, C]]
- B. [[A, B], [A, B, C]]
- C. An exception is thrown at run time.
- D. [[A, B],[A, B]]
Answer: C
Explanation:
NEW QUESTION 135
Given:
What is the expected result of javac?
- A. javac fails to compile the class and prints the error message, C:\workspace4\Mycar.java:1:error:
expected import java.lang - B. javac compiles Mycar.java without errors or warnings.
- C. javac fails to compile the class and prints the error message, Error: Could not find or load main class Mycar.class
- D. javac fails to compile the class and prints the error message, C:\workspace4\Mycar.java:1:error: package java does not exist
Answer: B
NEW QUESTION 136
Given:
Which code, when inserted at one or more marked positions, would allow classes B and C to compile?
- A. implements A // position 1@Override // position 2
- B. @Override // position 2public void z() { } // position 3
- C. @Override // position 3void x () {} // position 3@Override // position 3public void z() { } // position 3
- D. public void z() { } // position 3
Answer: B
NEW QUESTION 137
Given:
and
checkQuality(QUALITY.A);
and
Which code fragment can be inserted into the switch statement to print Best?
- A. QUALITY.A
- B. QUALITY.A.ValueOf()
- C. A
- D. A.toString()
Answer: C
NEW QUESTION 138
Given:
What is the result?
- A. p1
- B. Joe Bloggs
- C. The compilation fails due to an error in line 1.
- D. null
Answer: C
Explanation:
NEW QUESTION 139
Given:
Which would cause s to be AQCD?
- A. s.replace(s.indexOf("B"), s.indexOf("C"), "Q");
- B. s.replace(s.indexOf("A"), s.indexOf("C"), "Q");
- C. s.replace(s.indexOf("A"), s.indexOf("B"), "Q");
- D. s.replace(s.indexOf("B"), s.indexOf("B"), "Q");
Answer: A
NEW QUESTION 140
Given:
Path p1 = Paths.get("/scratch/exam/topsecret/answers");
Path p2 = Paths.get("/scratch/exam/answers/temp.txt");
Path p3 = Paths.get("/scratch/answers/topsecret");
Which two statements print ..\..\..\answers\topsecret? (Choose two.)
- A. System.out.print(p1.relativize(p3));
- B. System.out.print(p1.relativize(p2));
- C. System.out.print(p3.relativize(p1));
- D. System.out.print(p2.relativize(p3));
- E. System.out.print(p2.relativize(p1));
- F. System.out.print(p3.relativize(p2));
Answer: A,C
NEW QUESTION 141
A bookstore's sales are represented by a list of Sale objects populated with the name of the customer and the books they purchased.
public class Sale {
private String customer;
private List<Book> items;
// constructor, setters and getters not shown
}
public class Book {
private String name;
private double price;
// constructor, setters and getters not shown
}
Given a list of Sale objects, tList, which code fragment creates a list of total sales for each customer in ascending order?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: B
NEW QUESTION 142
Examine this excerpt from the declaration of the java.se module:
What does the transitive modifier mean?
- A. Any module that attempts to require the java.se module actually requires the java.sql module instead.
- B. Only a module that requires the java.se module is permitted to require the java.sql module.
- C. Any module that requires the java.se module does not need to require the java.sql module.
- D. Any module that requires the java.sql module does not need to require the java.se module.
Answer: B
NEW QUESTION 143
......
Valid 1z1-819 Test Answers & Oracle 1z1-819 Exam PDF: https://actualtests.real4prep.com/1z1-819-exam.html