[Oct 16, 2023] Powerful 1Z0-819 PDF Dumps for 1Z0-819 Questions
Authentic 1Z0-819 Dumps - Free PDF Questions to Pass
Oracle 1z1-819 exam consists of 80 multiple-choice questions that must be completed within 180 minutes. 1Z0-819 exam covers various topics such as Java syntax, data types, arrays, control flow statements, and object-oriented programming concepts such as inheritance, polymorphism, encapsulation, and abstraction. 1Z0-819 exam also tests the candidate's knowledge of Java APIs such as I/O, JDBC, and Collections.
NEW QUESTION # 64
Given:
What is the result?
- A.
- B.
- C.
- D.
Answer: C
NEW QUESTION # 65
Given:
Which is true?
- A. System.in cannot reassign the other stream.
- B. System.out is the standard output stream. The stream is open only when System.out is called.
- C. System.in is the standard input stream. The stream is already open.
- D. System.out is an instance of java.io.OutputStream by default.
Answer: C
NEW QUESTION # 66
Given:
What is the result?
- A. On line 9, an exception is thrown at run time.
- B. [A, B, C]
[A, B] - C. [A, B, C]
followed by an exception thrown on line 11. - D. [A, B, C]
[A, B, C]
Answer: D
Explanation:
NEW QUESTION # 67
Given:
and
and
What is the result?
- A. The program prints Process()called 1.
- B. A java.lang.IllegalAccessExceptionis thrown.
- C. A java.lang.NoSuchMethodExceptionis thrown.
- D. The compilation fails.
- E. The program prints Process()called 2.
Answer: D
NEW QUESTION # 68
Given:
What is the result?
- A. It fails to compile.
- B. null
- C. nothing
- D. java.lang.IllegalAccessException is thrown.
- E. Student
Answer: A
NEW QUESTION # 69
Given the code fragment:
What is the output?
- A. A runtime exception is thrown.
- B. The compilation fails.
- C. [-3, -2, -1]
- D. [-1, -2, -3]
Answer: A
NEW QUESTION # 70
Given:
Which two methods modify field values? (Choose two.)
- A. setGCount
- B. setAllCounts
- C. setCCount
- D. setTCount
- E. setACount
Answer: A,B
NEW QUESTION # 71
Given the code fragment:
What is the result?
- A. A java.lang, UnsupportedOperationException is thrown.
- B. True
- C. False
- D. A java.lang.NullPointerException is thrown.
Answer: A
NEW QUESTION # 72
Given:
What is the result?
- A. The compilation fails due to an error in line 1.
- B. 0-6
1-5
2-4 - C. 1-5
2-4 - D. 0-6
2-4 - E. 0-6
- F. 1-5
- G. 2-4
Answer: F
Explanation:
NEW QUESTION # 73
Given:
What is the type of the local variable x?
- A. Character
- B. String[ ]
- C. char
- D. String
Answer: D
NEW QUESTION # 74
Given:
and omitting the throws FooException clause results in a compilation error.
Which statement is true about FooException?
- A. FooException is a subclass of RuntimeError.
- B. The body of foo can only throw FooException.
- C. FooException is unchecked.
- D. The body of foo can throw FooException or one of its subclasses.
Answer: D
NEW QUESTION # 75
Given:
Which two independent changes will make the Main class compile? (Choose two.)
- A. Change line 2 to public Student(String classname).
- B. Move the entire Student class declaration to a separate Java file, Student.java.
- C. Change line 3 to Student student = new Student("Biology");.
- D. Change line 1 to public class Student {.
- E. Change line 1 to static class Student {.
Answer: A,C
Explanation:
NEW QUESTION # 76
Given:
What is the result?
- A. Map: 0 Keys: 0 Values: 0
- B. Map: 4 Keys: 4 Values: 4
- C. Map: 4 Keys: 0 Values: 0
- D. Map: 0 Keys: 4 Values: 4
- E. The compilation fails.
Answer: C
Explanation:
NEW QUESTION # 77
Given the code fragment:
Which "for" loop produces the same output?
- A. Option D
- B. Option C
- C. Option A
- D. Option B
Answer: B
NEW QUESTION # 78
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 Peter Aman
- D. Tom Aman Peter
Answer: A
NEW QUESTION # 79
Given:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 80
Given:
Which would cause s to be AQCD?
- A. s.replace(s.indexOf("B"), s.indexOf("B"), "Q");
- B. s.replace(s.indexOf("A"), s.indexOf("B"), "Q");
- C. s.replace(s.indexOf("A"), s.indexOf("C"), "Q");
- D. s.replace(s.indexOf("B"), s.indexOf("C"), "Q");
Answer: D
NEW QUESTION # 81
Given:
What is the result?
- A. 0
- B. An exception is thrown at runtime.
- C. 1
- D. 2
Answer: A
Explanation:
NEW QUESTION # 82
Given:
What is the result?
- A. 2,34,54,3
- B. 2,34,34,5
- C. 2,54,54,5
- D. 2,34,54,5
Answer: C
Explanation:
NEW QUESTION # 83
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:
Which statement inserted on line 14 sets NAME column to a NULL value?
- A. Stmt.setNull(2, null);
- B. Stmt.setNull(2, java,sql. Types, VARCHAR);
- C. Stmt.setNull(2 string, class);
- D. Stmt.setNull(2, java.lang, string);
Answer: B
NEW QUESTION # 84
Given:
Which statement on line 1 enables this code fragment to compile?
- A. UnaryOperator function = s > s.toUpperCase();
- B. Function<String> function = m > m.toUpperCase();
- C. Function function = String::toUpperCase;
- D. UnaryOperator<String> function = String::toUpperCase;
Answer: D
Explanation:
NEW QUESTION # 85
Given:
Which two method implementations are correct, when inserted independently in line 1? (Choose two.)
- A. Option A
- B. Option D
- C. Option C
- D. Option E
- E. Option B
Answer: A,D
NEW QUESTION # 86
Given:
Which statement is true about the Fox class?
- A. Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.
- B. Fox class does not have to override inhabit method, so long as it does not try to call it.
- C. The inhabit method implementation from the first interface that Fox implements will take precedence.
- D. Fox class must provide implementation for the inhabit method.
- E. Fox class must implement either Forest or Town interfaces, but not both.
Answer: A
NEW QUESTION # 87
Given this requirement:
Module vehicle depends on module part and makes its com.vehicle package available for all other modules.
Which module-info.java declaration meets the requirement?
- A. Option A
- B. Option D
- C. Option C
- D. Option B
Answer: A
NEW QUESTION # 88
......
The Oracle 1Z0-819 exam consists of 80 questions and has a time limit of 180 minutes. The passing score for the exam is 63%, and candidates can retake the exam if they do not pass on their first attempt. Oracle also offers study materials, including official training courses and practice exams, to help candidates prepare for the exam.
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