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Oracle 1Z0-819 certification exam is one of the most widely recognized and respected certifications in the IT industry. Java SE 11 Developer certification is essential for developers who want to demonstrate their expertise in Java programming and advance their careers in the IT industry. 1z1-819 exam is designed to test your knowledge and skills in Java SE 11 programming and prepare you for the challenges of developing enterprise applications using Java.
Oracle 1Z0-819 (Java SE 11 Developer) Certification Exam is an internationally recognized certification program designed for Java developers who want to validate their knowledge and expertise in Java programming. Java SE 11 Developer certification exam covers a wide range of topics, including Java syntax and structure, object-oriented programming, functional programming, error handling, and concurrency. 1z1-819 exam is designed to test the candidate's understanding of Java SE 11 and their ability to apply Java programming concepts to real-world scenarios.
Oracle 1Z0-819 certification exam is designed to test the developer's proficiency in Java SE 11. 1z1-819 exam is an upgrade of the previous Java SE 8 certification exams and is suited for developers who want to keep up with the latest Java technologies. Passing 1z1-819 exam proves that the developer has the skills and knowledge required to develop robust applications using Java SE 11.
NEW QUESTION # 128
Which two statements are true about Java modules? (Choose two.)
- A. Any named module can directly access all classes in an automatic module.
- B. Modular jars loaded from -classpath are automatic modules.
- C. If a package is defined in both the named module and the unnamed module, then the package in the unnamed module is ignored.
- D. Modular jars loaded from --module-path are automatic modules.
- E. Classes found in -classpath are part of an unnamed module.
Answer: D,E
NEW QUESTION # 129
Given the code fragment:
What is the result?
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: B
NEW QUESTION # 130
Given:
You want to obtain the Stream object on reading the file. Which code inserted on line 1 will accomplish this?
- A. Stream lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));
- B. var lines = Files.lines(Paths.get(INPUT_FILE_NAME));
- C. var lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));
- D. Stream<String> lines = Files.lines(INPUT_FILE_NAME);
Answer: C
NEW QUESTION # 131
Which two statements are true about the modular JDK? (Choose two.)
- A. The foundational APIs of the Java SE Platform are found in the java.base module.
- B. An application must be structured as modules in order to run on the modular JDK.
- C. APIs are deprecated more aggressively because the JDK has been modularized.
- D. It is possible but undesirable to configure modules' exports from the command line.
Answer: A,D
NEW QUESTION # 132
Given:
What is the result?
- A. Unknown
- B. Working
- C. TuesdayUnknown
- D. Tuesday
- E. WorkingUnknown
- F. The compilation fails.
Answer: A
Explanation:
NEW QUESTION # 133
Given the code fragment:
What is the result?
- A. True
- B. A java.lang.NullPointerException is thrown.
- C. False
- D. A java.lang, UnsupportedOperationException is thrown.
Answer: D
NEW QUESTION # 134
Why would you choose to use a peek operation instead of a forEach operation on a Stream?
- A. to process the current item and return void
- B. to remove an item from the beginning of the stream
- C. to remove an item from the end of the stream
- D. to process the current item and return a stream
Answer: D
NEW QUESTION # 135
Given:
Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)
- A. setCCount(c) = cCount;
- B. aCount = a;
- C. tCount = tCount;
- D. setGCount(g);
- E. cCount = setCCount(c);
Answer: B,C
NEW QUESTION # 136
Which is true?
- A. The code does not compile successfully.
- B. It prints 666.
- C. Code compiles but throws a runtime exception when run.
- D. The code compiles and runs successfully but with a wrong answer (i.e., a bug).
Answer: C
NEW QUESTION # 137
Given:
What is the result?
- A. An exception is thrown at runtime.
- B. 0
- C. 1
- D. 2
Answer: D
Explanation:
NEW QUESTION # 138
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. fruits.stream().filter(f -> f.contains("n")).forEachOrdered(System.out::print);
- B. String result = fruits.stream().filter(f -> f.contains("n")).findAny();
- C. Optional<String> result = fruits.stream().anyMatch(f -> f.contains("n"));
- D. Optional<String> result = fruits.stream().filter(f -> f.contains ("n")).findFirst ();
Answer: A
Explanation:
NEW QUESTION # 139
Given:
Which is true?
- A. The code does not compile.
- B. The code throws an exception at runtime.
- C. The code prints 25.
- D. The code compiles but does not print any result.
Answer: A
NEW QUESTION # 140
Given:
and
Which four identifiers from the Fooand Barclasses are visible at line 1? (Choose four.)
- A. j
- B. f
- C. g
- D. h
- E. i
- F. A
- G. c
- H. d
- I. e
- J. B
Answer: C,F,G,J
NEW QUESTION # 141
Given the Person class with age and name along with getter and setter methods, and this code fragment:
What will be the result?
- A. Aman Peter Tom
- B. Aman Tom Peter
- C. Tom Aman Peter
- D. Tom Peter Aman
Answer: A
NEW QUESTION # 142
Given:
What is the result?
- A. An IndexOutOfBoundsException is thrown at runtime.
- B. is it 1
- C. this is it 3
- D. this is it 2
- E. is it 0
Answer: D
Explanation:
NEW QUESTION # 143
Given:
What is the result?
- A. 5 12
- B. 0 5
- C. 6 13
- D. compilation error
Answer: D
Explanation:
NEW QUESTION # 144
Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:
What security measures should be added to this method so that it meets the requirements for a customer accessible method?
- A.
- B. Enclose the call to new Socket In an AccessController.doPrivileged block.
- C. Make enableService private.
- D. Create a method that validates the hostName and portNumber parameters before opening the socket.
Answer: B
NEW QUESTION # 145
Given:
What is the result?
- A. Map: 0 Keys: 0 Values: 0
- B. Map: 4 Keys: 4 Values: 4
- C. Map: 0 Keys: 4 Values: 4
- D. Map: 4 Keys: 0 Values: 0
- E. The compilation fails.
Answer: D
Explanation:
NEW QUESTION # 146
Which two statements set the default locale used for formatting numbers, currency, and percentages? (Choose two.)
- A. Locale.setDefault("es", Locale.US);
- B. Locale.setDefault(Locale.Category.FORMAT, "zh-CN");
- C. Locale.setDefault(Locale.Category.FORMAT, Locale.CANADA_FRENCH);
- D. Locale.setDefault("en_CA");
- E. Locale.setDefault(Locale.SIMPLIFIED_CHINESE);
Answer: C,D
NEW QUESTION # 147
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option D
- D. Option A
Answer: C
NEW QUESTION # 148
Given the code fragment:
Which two code snippets inserted independently inside println method print Mondial:domainmodel? (Choose two.)
- A. prefix + name
- B. Main.prefix + Main.name
- C. new Main().prefix + new Main().name
- D. prefix + Main.name
- E. prefix + getName
- F. Main.prefix + Main.getName()
Answer: E,F
NEW QUESTION # 149
Given:
Which two codes, independently, can be inserted in line to 1 compile?
- A. Abacus aba = (int m, int n) -> { m * n };
- B. Abacus aba = (int e, int f) -> { return e * f; };
- C. Abacus aba = v, w -> x * y;
- D. Abacus aba = (int i, j) -> ( return i * j; };
- E. Abacus aba = (a, b) -> a * b;
Answer: D,E
NEW QUESTION # 150
Given:
Which two lines cause compilation errors? (Choose two.)
- A. line 6
- B. line 8
- C. line 12
- D. line 7
- E. line 9
Answer: A,D
NEW QUESTION # 151
Given the code fragment:
What is the result?
- A. The compilation fails at line
- B. 0
- C. The compilation fails at line 16.
- D. 1
- E. The compilation fails at line 13.
Answer: B
NEW QUESTION # 152
......
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