kssume the code below. (1) What design pattern, as well as the category, does the code follow? Explain your answer. (i) What is the purpose and benefit of this Design Pattern? Explain it linking with the code. (ii) Identify the major issue this code has and propose a solution: description and new code public class FileWriterDemo { public static void main( String0 args ) { class Writer extends Thread { public void run() { FileWriter mc = FileWriter.retrieveController(); for (int i = 0; i < 100; i++) mc.write( "msg-" + i ); } List ws = new ArrayList (); for ( int i = 0; i < 100; i++ ) ws.add( new Writer () ); for ( Writer w : ws) w.start (); ws.forEach ( (w) -> { try { w.join (); } catch (Exception e){ System.err.println (e.getMessage ()); }} ); class FileWriter { private static FileWriter controller; private FileWriter(){ } public static FileWriter retrieveController() { if (controller == null) controller = new FileWriter(); return controller; public void write( String msg ) { System.out.println( "Writing msg to file: " + msg );
kssume the code below. (1) What design pattern, as well as the category, does the code follow? Explain your answer. (i) What is the purpose and benefit of this Design Pattern? Explain it linking with the code. (ii) Identify the major issue this code has and propose a solution: description and new code public class FileWriterDemo { public static void main( String0 args ) { class Writer extends Thread { public void run() { FileWriter mc = FileWriter.retrieveController(); for (int i = 0; i < 100; i++) mc.write( "msg-" + i ); } List ws = new ArrayList (); for ( int i = 0; i < 100; i++ ) ws.add( new Writer () ); for ( Writer w : ws) w.start (); ws.forEach ( (w) -> { try { w.join (); } catch (Exception e){ System.err.println (e.getMessage ()); }} ); class FileWriter { private static FileWriter controller; private FileWriter(){ } public static FileWriter retrieveController() { if (controller == null) controller = new FileWriter(); return controller; public void write( String msg ) { System.out.println( "Writing msg to file: " + msg );
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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![Assume the code below. (i) What design pattern, as well as the category, does the code follow? Explain your answer. (ii) What is the purpose and benefit of this Design Pattern? Explain it linking with the code. (ii) Identify the major issue this code has and propose a solution: description and new code.
public class FileWriterDemo {
public static void main( String[] args ) {
class Writer extends Thread {
public void run() {
FileWriter mc = FileWriter.retrieveController();
for (int i = 0; i < 100; i++)
mc.write( "msg-" + i );
}
}
List<Writer> ws =
new ArrayList<Writer> ();
for ( int i = 0; i < 100; i++ ) ws.add( new Writer () );
for ( Writer w : ws ) w.start();
ws.forEach ( (w) -> {
try {
w.join();
} catch (Exception e){ System.err.println(e.getMessage ()); }}
) ;
class FileWriter {
private static FileWriter controller;
private FileWriter(){ }
public static FileWriter retrieveController(){
if (controller == null)
controller = new FileWriter();
return controller;
}
public void write( String msg ) {
System.out.println( "Writing msg to file:
+ msg );](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20302e94-d3c6-4f09-bbaa-13fc40177676%2Ffaf4ba5a-5afb-414a-b1a8-9fb9281a9a44%2F6yasrz4_processed.png&w=3840&q=75)
Transcribed Image Text:Assume the code below. (i) What design pattern, as well as the category, does the code follow? Explain your answer. (ii) What is the purpose and benefit of this Design Pattern? Explain it linking with the code. (ii) Identify the major issue this code has and propose a solution: description and new code.
public class FileWriterDemo {
public static void main( String[] args ) {
class Writer extends Thread {
public void run() {
FileWriter mc = FileWriter.retrieveController();
for (int i = 0; i < 100; i++)
mc.write( "msg-" + i );
}
}
List<Writer> ws =
new ArrayList<Writer> ();
for ( int i = 0; i < 100; i++ ) ws.add( new Writer () );
for ( Writer w : ws ) w.start();
ws.forEach ( (w) -> {
try {
w.join();
} catch (Exception e){ System.err.println(e.getMessage ()); }}
) ;
class FileWriter {
private static FileWriter controller;
private FileWriter(){ }
public static FileWriter retrieveController(){
if (controller == null)
controller = new FileWriter();
return controller;
}
public void write( String msg ) {
System.out.println( "Writing msg to file:
+ msg );
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