ComputerScienceExpert

(11)

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About ComputerScienceExpert

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Applied Sciences,Calculus See all
Applied Sciences,Calculus,Chemistry,Computer Science,Environmental science,Information Systems,Science Hide all
Teaching Since: Apr 2017
Last Sign in: 103 Weeks Ago, 4 Days Ago
Questions Answered: 4870
Tutorials Posted: 4863

Education

  • MBA IT, Mater in Science and Technology
    Devry
    Jul-1996 - Jul-2000

Experience

  • Professor
    Devry University
    Mar-2010 - Oct-2016

Category > Programming Posted 05 May 2017 My Price 8.00

Fullscreen Pageflip Layout with BookBlock

Fullscreen Pageflip Layout with BookBlock

public class Quiz {
    public static void main(String[] args) {
        String s = null;
        if (s.length() > 0) {
  System.out.println(s);
        } else {
  System.out.println("empty string");
        }
    }
}

Which of the following statement best characterizes the above Java program:

  1. 1. The program runs without error, but displays nothing on the console.
  2. 2. Displays a message of the form “String@5e8fce95” on the console.
  3. 3. Displays “empty string” on the console.
  4. 4. Produces a compile-time error: 
    public Quiz.java:4: variable s might not have been initialized
if (s.length() > 0) {
    ^
1 error
  5. 5. Produces a run-time error: 
    Exception in thread "main" java.lang.NullPointerException
at Quiz.main(Quiz.java:4)

Answers

ComputerScienceExpert
(11)
Status NEW Posted 05 May 2017 01:05 AM My Price 8.00

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Attachments

file 1493948277-Solutions file 2.docx preview (51 words )
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