Homework Help is Here – Start Your Trial Now!
Engineering
Computer Science
Question 2 (10 Points): String vs. StringBuilder Create a Question2.java file and finish the following tasks: Task 1. a) Create a 1D array of integers to store 50 integers. b) Store values from 0 to 49 in the array you just created. c) Create a new String Object using no-arg constructor. d) Using for loop to add the array elements one by one to the String (one per loop iteration) Hint: to append an element to a String, use the + operator. e) Output the String on the console. Record and display a run-time it took to append all integers to the String (record run-time of 1.d.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 196708 nanoseconds to append 50 integers to the String.| Hint: You can use the following statements to record run-time. long begin, end, time; // we will measure time it took begin = System.nanoTime(); //we measure in nanoseconds. // put your code here. = end System.nanoTime(); time Task 2. - end begin; f) Create a new StringBuilder Object using no-arg constructor. g) Using for loop to append the array elements one by one to the StringBuilder (one per loop iteration) Hint: to append an element to a StringBuilder, use the append() method in StringBuilder h) Output the StringBuilder on the console. Record a run-time it took to append all integers to the StringBuilder (record run-time of 2.g.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 59250 nanoseconds to append 50 integers to the StringBuilder. Task 3. i) Compare your results from Tasks 1 and 2. j) Repeat Tasks 1 and 2 for 500 and 5,000 elements. k) Summarize run-time results in the following table: Time/size n 50 String StringBuilder 500 5,000

Question 2 (10 Points): String vs. StringBuilder Create a Question2.java file and finish the following tasks: Task 1. a) Create a 1D array of integers to store 50 integers. b) Store values from 0 to 49 in the array you just created. c) Create a new String Object using no-arg constructor. d) Using for loop to add the array elements one by one to the String (one per loop iteration) Hint: to append an element to a String, use the + operator. e) Output the String on the console. Record and display a run-time it took to append all integers to the String (record run-time of 1.d.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 196708 nanoseconds to append 50 integers to the String.| Hint: You can use the following statements to record run-time. long begin, end, time; // we will measure time it took begin = System.nanoTime(); //we measure in nanoseconds. // put your code here. = end System.nanoTime(); time Task 2. - end begin; f) Create a new StringBuilder Object using no-arg constructor. g) Using for loop to append the array elements one by one to the StringBuilder (one per loop iteration) Hint: to append an element to a StringBuilder, use the append() method in StringBuilder h) Output the StringBuilder on the console. Record a run-time it took to append all integers to the StringBuilder (record run-time of 2.g.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 59250 nanoseconds to append 50 integers to the StringBuilder. Task 3. i) Compare your results from Tasks 1 and 2. j) Repeat Tasks 1 and 2 for 500 and 5,000 elements. k) Summarize run-time results in the following table: Time/size n 50 String StringBuilder 500 5,000

EBK JAVA PROGRAMMING
EBK JAVA PROGRAMMING
9th Edition
ISBN:9781337671385
Author:FARRELL
Publisher:FARRELL
Chapter9: Advanced Array Concepts
Section: Chapter Questions
Problem 1PE
See similar textbooks
icon
Related questions
Question
Question 2 (10 Points): String vs. StringBuilder Create a Question2.java file and finish the following tasks: Task 1. a) Create a 1D array of integers to store 50 integers. b) Store values from 0 to 49 in the array you just created. c) Create a new String Object using no-arg constructor. d) Using for loop to add the array elements one by one to the String (one per loop iteration) Hint: to append an element to a String, use the + operator. e) Output the String on the console. Record and display a run-time it took to append all integers to the String (record run-time of 1.d.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 196708 nanoseconds to append 50 integers to the String.| Hint: You can use the following statements to record run-time. long begin, end, time; // we will measure time it took begin = System.nanoTime(); //we measure in nanoseconds. // put your code here. = end System.nanoTime(); time Task 2. - end begin; f) Create a new StringBuilder Object using no-arg constructor. g) Using for loop to append the array elements one by one to the StringBuilder (one per loop iteration) Hint: to append an element to a StringBuilder, use the append() method in StringBuilder h) Output the StringBuilder on the console. Record a run-time it took to append all integers to the StringBuilder (record run-time of 2.g.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 59250 nanoseconds to append 50 integers to the StringBuilder. Task 3. i) Compare your results from Tasks 1 and 2.
Transcribed Image Text:Question 2 (10 Points): String vs. StringBuilder Create a Question2.java file and finish the following tasks: Task 1. a) Create a 1D array of integers to store 50 integers. b) Store values from 0 to 49 in the array you just created. c) Create a new String Object using no-arg constructor. d) Using for loop to add the array elements one by one to the String (one per loop iteration) Hint: to append an element to a String, use the + operator. e) Output the String on the console. Record and display a run-time it took to append all integers to the String (record run-time of 1.d.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 196708 nanoseconds to append 50 integers to the String.| Hint: You can use the following statements to record run-time. long begin, end, time; // we will measure time it took begin = System.nanoTime(); //we measure in nanoseconds. // put your code here. = end System.nanoTime(); time Task 2. - end begin; f) Create a new StringBuilder Object using no-arg constructor. g) Using for loop to append the array elements one by one to the StringBuilder (one per loop iteration) Hint: to append an element to a StringBuilder, use the append() method in StringBuilder h) Output the StringBuilder on the console. Record a run-time it took to append all integers to the StringBuilder (record run-time of 2.g.)). Please submit a screenshot. The screenshot should match the following example: 012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 it took 59250 nanoseconds to append 50 integers to the StringBuilder. Task 3. i) Compare your results from Tasks 1 and 2.
j) Repeat Tasks 1 and 2 for 500 and 5,000 elements. k) Summarize run-time results in the following table: Time/size n 50 String StringBuilder 500 5,000
Transcribed Image Text:j) Repeat Tasks 1 and 2 for 500 and 5,000 elements. k) Summarize run-time results in the following table: Time/size n 50 String StringBuilder 500 5,000
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
EBK JAVA PROGRAMMING
EBK JAVA PROGRAMMING
Computer Science
ISBN:
9781337671385
Author:
FARRELL
Publisher:
CENGAGE LEARNING - CONSIGNMENT
Programming with Microsoft Visual Basic 2017
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:
9781337102124
Author:
Diane Zak
Publisher:
Cengage Learning
C++ Programming: From Problem Analysis to Program…
C++ Programming: From Problem Analysis to Program…
Computer Science
ISBN:
9781337102087
Author:
D. S. Malik
Publisher:
Cengage Learning
Programming Logic & Design Comprehensive
Programming Logic & Design Comprehensive
Computer Science
ISBN:
9781337669405
Author:
FARRELL
Publisher:
Cengage
Microsoft Visual C#
Microsoft Visual C#
Computer Science
ISBN:
9781337102100
Author:
Joyce, Farrell.
Publisher:
Cengage Learning,
C++ for Engineers and Scientists
C++ for Engineers and Scientists
Computer Science
ISBN:
9781133187844
Author:
Bronson, Gary J.
Publisher:
Course Technology Ptr
SEE MORE TEXTBOOKS