Mar-2023 FREE Oracle 1z1-811 PRACTICE QUESTIONS AND ANSWERS UPDATES [Q27-Q47]

Mar-2023 FREE Oracle 1z1-811 PRACTICE QUESTIONS AND ANSWERS UPDATES

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NEW QUESTION 27
What is the meaning of "write once, run anywhere" in Java?

A. Java programs are designed to run only in web browsers and, thus, can run wherever there is a browser.
B. Java programs, after being compiled, can run on any platform or device even without a Java Virtual Machine.
C. It is a marketing statement because Java programs must be compiled for a specific platform in order to run.
D. Java programs can run on any Java Virtual Machine without being recompiled.

Answer: D

NEW QUESTION 28
Given the code fragment:

What is the result?

A. 9
12
B. 10
14
C. 9
9
D. 10
10

Answer: D

NEW QUESTION 29
Identify three features of the Java programming language.

A. strongly typed
B. multithreaded
C. direct memory management
D. distributed
E. dynamically typed

Answer: B,D,E

NEW QUESTION 30
You have been asked to develop a Java program that prints the elements of an array in reverse order.
Which looping statement cannot be used to meet the requirement?

A. do-while
B. enhanced for
C. standard for
D. while

Answer: A

NEW QUESTION 31
Given:

What is the result?

A. 0
B. A compilation error occurs.
C. 1
D. 2

Answer: C

NEW QUESTION 32
Given these class definitions:

Which class or classes compile?

A. only MyClassB, MyClassC, and MyClassD
B. MyClassA, MyClassB, MyClassC, and MyClassD
C. only MyClassB and MyClassD
D. only MyClassB

Answer: C

NEW QUESTION 33
Which two Java reserved words are used to implement encapsulation?

A. static
B. extends
C. public
D. private
E. final

Answer: C,D

NEW QUESTION 34
Given the code fragment:

What is the result?

A. Queen
B. Jack
C. A compilation error occurs at line n1.
D. The program prints either Jack or Queen.

Answer: C

NEW QUESTION 35
Given:

Which statement, when inserted at line n1, enables the Course class to compile?

A. long newFee;
B. float newFee;
C. int newFee;
D. double newFee;

Answer: D

NEW QUESTION 36
Given the code fragment:

Which statement is true?

A. The code compiles successfully
B. The code results in a compilation error. To make it compile, insert at line n1:
import java.lang;
import java.util;
C. The code results in a compilation error. To make it compile, insert at line n1:
import java.util.*;
D. The code results in a compilation error. To make it compile, insert at line n1:
import java.lang.Math;
import java.lang.Random;

Answer: A

NEW QUESTION 37
Given the code fragment:

What is the result?

A. 0
B. 1
C. 2
D. 3

Answer: B

NEW QUESTION 38
Given the code fragment:

What is the result?

A. 0
B. A compilation error occurs.
C. 1
D. 2

Answer: D

NEW QUESTION 39
Given the code fragment:

What is the result?

A. Peter
Julia
B. A compilation error occurs.
C. A runtime exception is thrown.
D. Julia
Peter

Answer: D

NEW QUESTION 40
Given the code fragment:

What is the result?

A. Selected Chocolate flavor.
B. An ArrayIndexOutofBoundsException is thrown at run time.
C. Selected Chocolate flavor.
D. Selected null flavor.

Answer: B

NEW QUESTION 41
Identify two valid data types for the operands of the addition (+) operator?

A. string
B. boolean
C. array
D. numeric

Answer: A,C

NEW QUESTION 42
Given the code fragment:

Which two code fragments are valid at line 2?

A. private String name = "John";
public void display() {
System.out.print(name);
}
B. for (int count = 0; count < 5; count++) {
System.out.print(count);
}
C. {
private int num;
}
D. package p1;
E. import java.util.*;
public void display() {
List<Integer> nums = new ArrayList<> ();
}