Using Newest Lead4Pass 1Z0-811 Exam Dumps Complete Oracle 1Z0-811 Exam – 2023.01
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Share the latest Oracle 1Z0-811 dumps free Q&A for reference
Question 1:
Which statement is true about primitive variables?
A. They can be compared with the == operator.
B. They can be compared with the equals method only.
C. They cannot be compared.
D. They can be compared with the compareTo method only.
Correct Answer: B
Reference: https://stackoverflow.com/questions/9690981/compare-two-primitive-long-variables-in-java
Question 2:
Identify two Java reserved words.
A. array
B. true
C. this
D. exception
E. string
Correct Answer: BC
Reference: https://www.computerhope.com/jargon/j/java_reserved_words.htm
Question 3:
Which statement is true about a Java method?
A. It must be declared with an access modifier.
B. It cannot be defined within another method.
C. It must accept a parameter and return a value.
D. It cannot be defined as static final.
Correct Answer: B
Reference: https://www.quora.com/Can-we-define-a-function-within-another-function-in-Java
Question 4:
Given:
And the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print All the best?
A. void writeMsg();
B. Messenger.writeMsg();
C. writeMsg();
D. m.writeMsg();
Correct Answer: B
Question 5:
Given the code fragment:
Which two code fragments are valid at line 2?
A. for (int count = 0; count < 5; count++) {
System.out.print(count);
}
B. package p1;
C. import java.util.*; public void display() { List nums = new ArrayList (); }
D. { private int num; }
E. private String name = “John”; public void display() { System.out.print(name); }
Correct Answer: BE
Question 6:
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. enhanced for
B. standard for
C. while
D. do-while
Correct Answer: D
Reference: https://www.javatpoint.com/java-program-to-print-the-elements-of-an-array-in-reverse-order
Question 7:
Given the code fragment:
Which statement is true?
A. The code results in a compilation error. To make it compile, insert at line n1: import java.lang.Math; import java.lang.Random;
B. The code compiles successfully
C. The code results in a compilation error. To make it compile, insert at line n1: import java.lang; import java.util;
D. The code results in a compilation error. To make it compile, insert at line n1: import java.util.*;
Correct Answer: B
Question 8:
Given the code fragment:
What is the result?
A. pen pencil erasers paper
B. paper pen pencil erasers
C. A compilation error occurs.
D. A runtime exception is thrown.
Correct Answer: D
Question 9:
Given the code fragment:
Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?
A. System.out.println(name + “:” + count);
B. System.out.println(c.name + “:” + count);
C. System.out.println(c.name + “:” + Course.count);
D. System.out.println(Course.name + “:” + c.count);
Correct Answer: C
Question 10:
Given:
What is the result?
A. [null:-]
B. [ : ]
C. [null:null]
D. [:null]
Correct Answer: A
Question 11:
Which two Java reserved words are used to implement encapsulation?
A. final
B. static
C. public
D. extends
E. private
Correct Answer: CE
Reference: https://learn.saylor.org/mod/page/view.php?id=22044
Question 12:
Given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print 0.0?
A. Ball b = null;
B. weight = 0.0;
C. Ball.weight = 0.0;
D. Ball b = new Ball(0.0);
E. Ball b = new Ball();
Correct Answer: D
Question 13:
Identify two features of Java.
A. architecture dependent
B. platform independent
C. single threaded
D. robust
Correct Answer: BD
Reference: https://www.javatpoint.com/features-of-java
Question 14:
Given the code fragment:
What is the result?
A. A compilation error occurs.
B. A runtime exception is thrown.
C. Julia Peter
D. Peter Julia
Correct Answer: C
Question 15:
Given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to compile?
A. new int num[];
B. int[] num;
C. int[10] num;
D. int num[10];
Correct Answer: B
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