[Dec 17, 2024] Fully Updated Java and Middleware (1z0-808) Certification Sample Questions
Latest Oracle 1z0-808 Real Exam Dumps PDF
NEW QUESTION # 50
Which three statements are benefits of encapsulation?
- A. Protects confidential data from leaking out of the objects
- B. Allows a class implementation to change without changing t he clients
- C. Permits classes to be combined into the same package
- D. Prevents code from causing exceptions
- E. Enables multiple instances of the same class to be created safely
- F. Enables the class implementation to protect its invariants
Answer: A,B,F
NEW QUESTION # 51
Given the following code for a Planet object:
What is the output?
- A. Option B
- B. Option E
- C. Option C
- D. Option A
- E. Option D
Answer: C
NEW QUESTION # 52
Given the code fragment: What is the result?
- A. Compilation fails.
- B. A B D E
- C. A B C D E
- D. A B C
Answer: B
NEW QUESTION # 53
public class StringReplace { public static void main(String[] args) { String message = "Hi everyone!";
System.out.println("message = " + message.replace("e", "X")); }
}
What is the result?
- A. message = Hi XvXryonX!
- B. A compile time error is produced.
- C. message = Hi Xveryone!
- D. message =
- E. A runtime error is produced.
- F. message = Hi everyone!
Answer: A
NEW QUESTION # 54
Given the code fragment:
What is the result?
- A. AnIndexOutOfBoundsExceptionis thrown at runtime.
- B. (green, red, yellow, cyan)
- C. (green, red, cyan, yellow)
- D. (green, blue, yellow, cyan)
Answer: B
NEW QUESTION # 55
Given the code fragment:
Which two modifications, made independently, enable the code to compile?
- A. Make the method at line n2 public.
- B. Make the method at line n3 protected.
- C. Make the method at line n3 public.
- D. Make the method at line n4 public.
- E. Make the method at line n1 public.
Answer: B,C
NEW QUESTION # 56
Given the code fragment:
What is the result?
- A. 1 3
1 3 0 0 - B. 1 3 5 7
1 3 - C. Compilation fails.
- D. 1 3
followed by an ArrayIndexOutOfBoundsException - E. 1 3
1 3
Answer: E
Explanation:
NEW QUESTION # 57
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. An exception is thrown at runtime.
Answer: C
NEW QUESTION # 58
Given:
What is the result?
- A. 0:20
- B. Compilation fails at line n1
- C. 10:20
- D. Compilation fails at line n2
Answer: D
NEW QUESTION # 59
Given the code fragment:
What is the result?
- A. 2012-02-10
- B. 2012-01-30
- C. A DateTimeException is thrown at runtime.
- D. 2012-02-10 00:00
Answer: B
Explanation:
NEW QUESTION # 60
Which statement is true about Java byte code?
- A. It can run on any platform only if it was compiled for that platform.
- B. It can run on any platform.
- C. It can run on any platform that has the Java Runtime Environment.
- D. It can run on any platform that has a Java compiler.
- E. It can run on any platform only if that platform has both the Java Runtime Environment and a Java compiler.
Answer: D
Explanation:
Reference:http://www.math.uni-hamburg.de/doc/java/tutorial/getStarted/intro/definition.html
NEW QUESTION # 61
int i, j=0;
i = (3* 2 +4 +5 ) ;
j = (3 * ((2+4) + 5));
System.out.println("i:"+ i + "\nj":+j);
What is the result?
- A. Option C
- B. Option A
- C. Option B
- D. Option D
Answer: C
NEW QUESTION # 62
Given the code fragment:
What is the result?
- A. 0
- B. An exception is thrown at runtime.
- C. 1
- D. 2
Answer: B
NEW QUESTION # 63
Given the code fragment:
What is the result?
- A. Answer = 0
- B. Invalid calculation
- C. Compilation fails only at line n1andline2.
- D. Compilation fails only at line n2.
- E. Compilation fails only at line n1.
Answer: C
NEW QUESTION # 64
Given the code fragment:
What is the result?
- A. Answer = 0
- B. Invalid calculation
- C. Compilation fails only at line n2.
- D. Compilation fails only at line n1 and line2.
- E. Compilation fails only at line n1.
Answer: D
NEW QUESTION # 65
Given:
public class MyFor {
public static void main(String[] args) {
for (int ii = 0; ii < 4; ii++) {
System.out.println("ii = "+ ii);
ii = ii +1;
}
}
}
What is the result?
- A. Compilation fails.
- B. ii = 0 ii = 2
- C. ii =
- D. ii = 0 ii = 1 ii = 2 ii = 3
Answer: B
NEW QUESTION # 66
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Oracle 1z0-808 certification exam covers a broad range of topics related to Java programming. 1z0-808 exam tests the candidates' knowledge of Java SE 8 fundamentals, such as variables, operators, and control structures, as well as their ability to write code using Java SE 8 APIs. 1z0-808 exam also covers topics such as encapsulation, inheritance, and polymorphism, which are essential concepts in object-oriented programming.
To prepare for the Oracle 1z0-808 exam, candidates are advised to have a thorough understanding of the Java programming language, including its syntax, fundamental concepts, and best practices. They should also have hands-on experience in developing Java applications using tools such as NetBeans, Eclipse, or IntelliJ IDEA. Additionally, candidates should familiarize themselves with the exam format, which consists of 70 multiple-choice questions that must be answered in 150 minutes.
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