Download Java Foundations.1z0-811.VCEplus.2021-06-19.75q.vcex

Vendor: Oracle
Exam Code: 1z0-811
Exam Name: Java Foundations
Date: Jun 19, 2021
File Size: 7 MB
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Demo Questions

Question 1
Which statement is true about primitive variables?
  1. They can be compared with the == operator.
  2. They can be compared with the equals method only.
  3. They cannot be compared.
  4. They can be compared with the compareTo method only.
Correct answer: B
Explanation:
Reference: https://stackoverflow.com/questions/9690981/compare-two-primitive-long-variables-in-java
Reference: https://stackoverflow.com/questions/9690981/compare-two-primitive-long-variables-in-java
Question 2
Given the code fragment: 
    
  
What is the result?
  1. 2
  2. 4
  3. The program executes an infinite number of times.
  4. 3
Correct answer: B
Explanation:
   
   
Question 3
Identify two Java reserved words.
  1. array
  2. true
  3. this
  4. exception
  5. string
Correct answer: BC
Explanation:
Reference: https://www.computerhope.com/jargon/j/java_reserved_words.htm
Reference: 
https://www.computerhope.com/jargon/j/java_reserved_words.htm
Question 4
Which statement is true about a Java method?
  1. It must be declared with an access modifier.
  2. It cannot be defined within another method.
  3. It must accept a parameter and return a value.
  4. It cannot be defined as static final.  
Correct answer: B
Explanation:
Reference: https://www.quora.com/Can-we-define-a-function-within-another-function-in-Java
Reference: https://www.quora.com/Can-we-define-a-function-within-another-function-in-Java
Question 5
Given: 
   
  
And the code fragment: 
   
  
Which code fragment can be inserted at line n1 to enable the code to print All the best?
  1. void writeMsg(); 
  2. Messenger.writeMsg();
  3. writeMsg();
  4. m.writeMsg();
Correct answer: B
Question 6
Given the code fragment: 
   
  
Which two code fragments are valid at line 2?
  1. for (int count = 0; count < 5; count++) 
    {  
    System.out.print(count);  
    }
  2. package p1;
  3. import java.util.*; public void 
    display() { List<Integer> nums = new  
    ArrayList<> ();  
    }
  4. { private int num;  
    }
  5. private String name = “John”; public 
    void display() { System.out.print(name);  
    }
Correct answer: BE
Question 7
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?
  1. enhanced for
  2. standard for
  3. while
  4. do-while
Correct answer: D
Explanation:
Reference: https://www.javatpoint.com/java-program-to-print-the-elements-of-an-array-in-reverse-order
Reference: https://www.javatpoint.com/java-program-to-print-the-elements-of-an-array-in-reverse-order
Question 8
Given the code fragment: 
   
  
Which statement is true?
  1. The code results in a compilation error. To make it compile, insert at line n1: 
    import java.lang.Math; import java.lang.Random;
  2. The code compiles successfully
  3. The code results in a compilation error. To make it compile, insert at line n1: 
    import java.lang; import java.util;
  4. The code results in a compilation error. To make it compile, insert at line n1: 
    import java.util.*;
Correct answer: B
Explanation:
   
   
Question 9
Given the code fragment: 
   
  
What is the result?
  1. pen pencil erasers paper
  2. paper pen pencil erasers
  3. A compilation error occurs.
  4. A runtime exception is thrown.
Correct answer: D
Explanation:
   
   
Question 10
Given the code fragment: 
    
  
Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?
  1. System.out.println(name + “:” + count);
  2. System.out.println(c.name + “:” + count);
  3. System.out.println(c.name + “:” + Course.count);
  4. System.out.println(Course.name + “:” + c.count);
Correct answer: C
Explanation:
   
   
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