Revise the code (Listing 5.4 Subtraction Quizloop.java) using the System.nanoTime() to measure the time in nano seconds.
Revise the code (Listing 5.4 Subtraction Quizloop.java) using the System.nanoTime() to measure the time in nano seconds.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Revise the code (Listing 5.4 Subtraction Quizloop.java) using the System.nanoTime() to measure the time in nano seconds.
![LISTING 5.4 SubtractionQuizLoop.java
1 import java.util. Scanner;
2
3 public class SubtractionQuizLoop (
public static void main(String[] args) {
final int NUMBER_OF_QUESTIONS = 5; 11 Number of questions
int correctCount = 0; 11 Count the number of correct answers
int count = 0; 1/ Count the number of questions
long startTime = System.currentTimeMillis();
String output = " "; // output string is initially empty
Scanner input = new Scanner (System. in);
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8.
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while (count < NUMBER_OF_QUESTIONS) {
/ 1. Generate two random single-digit integers
int numbert = (int) (Math. random () 10);
int number2 = (int) (Math.random ()* 10);
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2. If number < number2, swap numbert with number2
if (number1 < number2) {
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int temp = numbert;
number1 - number2;
number2 = temp;
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! 3. Prompt the student to answer "What is number - number2?
System.out print (
"What is " + number1 +
int answer = input.nextInt ();
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number2 + "? "):
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I| 4. Grade the answer and display the result
if (number1 - number2 == answer ) {
System.out.printin("You are correct!");
correctCount++; I Increase the correct answer count
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else
System.out.printin("Your answer is wrong. In" + number1
+ number2 + " should be " + (numbert - number2));
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II Increase the question count
count++;
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output += "\n" + number1
((number1 - number2 == answer) ? " correct":
number2 + "=" + answer +
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wrong");
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long endTime = System.currentTimeMillis();
long testTime = endTime - startTime;
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System.out.printin("Correct count is "
"InTest time is " + testTi me / 1000 + " seconds\n" + output);
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correctCount +
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51 )](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3d0b0572-8d36-4468-a5b0-740b909e03c0%2Fe4874ee5-2edc-4d70-a6b8-3edaa09a81f1%2F4zbjbc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:LISTING 5.4 SubtractionQuizLoop.java
1 import java.util. Scanner;
2
3 public class SubtractionQuizLoop (
public static void main(String[] args) {
final int NUMBER_OF_QUESTIONS = 5; 11 Number of questions
int correctCount = 0; 11 Count the number of correct answers
int count = 0; 1/ Count the number of questions
long startTime = System.currentTimeMillis();
String output = " "; // output string is initially empty
Scanner input = new Scanner (System. in);
4
5
6
8.
10
11
12
while (count < NUMBER_OF_QUESTIONS) {
/ 1. Generate two random single-digit integers
int numbert = (int) (Math. random () 10);
int number2 = (int) (Math.random ()* 10);
13
14
15
16
2. If number < number2, swap numbert with number2
if (number1 < number2) {
17
18
19
int temp = numbert;
number1 - number2;
number2 = temp;
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21
22
23
! 3. Prompt the student to answer "What is number - number2?
System.out print (
"What is " + number1 +
int answer = input.nextInt ();
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25
26
number2 + "? "):
27
28
I| 4. Grade the answer and display the result
if (number1 - number2 == answer ) {
System.out.printin("You are correct!");
correctCount++; I Increase the correct answer count
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30
31
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34
else
System.out.printin("Your answer is wrong. In" + number1
+ number2 + " should be " + (numbert - number2));
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II Increase the question count
count++;
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output += "\n" + number1
((number1 - number2 == answer) ? " correct":
number2 + "=" + answer +
42
wrong");
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long endTime = System.currentTimeMillis();
long testTime = endTime - startTime;
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System.out.printin("Correct count is "
"InTest time is " + testTi me / 1000 + " seconds\n" + output);
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correctCount +
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50
51 )
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