Consider the BadReaderWriter.java program attached with this homework. The program has three threads, namely, one reader thread and two writer threads, and they all access the same list of numbers. The reader thread reads the list and prints it to the terminal. The writer threads append numbers to the list. At any point in time, if either of the writer threads finds that the list contains n elements, then it appends the number n + 1 to the list. Run this program, examine the output, and identify the problems. Fix these problems by implementing the acquireLock() and releaseLock() methods in the code.
Consider the BadReaderWriter.java program attached with this homework. The program has three threads, namely, one reader thread and two writer threads, and they all access the same list of numbers. The reader thread reads the list and prints it to the terminal. The writer threads append numbers to the list. At any point in time, if either of the writer threads finds that the list contains n elements, then it appends the number n + 1 to the list. Run this program, examine the output, and identify the problems. Fix these problems by implementing the acquireLock() and releaseLock() methods in the code.
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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Question
Consider the BadReaderWriter.java program attached with this homework. The program has three threads, namely, one reader thread and two writer threads, and they all access the same list of numbers. The reader thread reads the list and prints it to the terminal. The writer threads append numbers to the list. At any point in time, if either of the writer threads finds that the list contains n elements, then it appends the number n + 1 to the list.
Run this program, examine the output, and identify the problems.
Fix these problems by implementing the acquireLock() and releaseLock() methods in the code.
![Activities
2 Text Editor
Dec 6 09:28
BadReaderWriter.java
-/Downloads/Telegram Desktop
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stattc class WriterThread extends Thread {
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String name = "":
ArrayList<Integer> numbers;
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WriterThread(String name, ArrayList<Integer> numbers) {
this.name = name;
this.numbers numbers;
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public votd run() {
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for (int count = 0; count < 10; count++) {
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try {
acqutrelock();
try {
Integer entry = numbers.stze() + 1;
numbers.add(entry);
Systen.out.printin(">>
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+ name +" added: " +
+ entry);
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Systen.out.flush();
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finally {
releaselock();
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} catch (InterruptedException e) {
e.printstackTrace();
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public static void main(String[] args) (
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ArrayList<Integer> listofNumbers = new Arraylist<Integer>();
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ReaderThread t1 = new Reader Thread("reader1", ltstofNumbers);
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WriterThread t2 = new Writer Thread("writer1", listofNumbers);
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writerThread t3 = new WriterThread( "writer2", ltstofNumbers);
t1.start();
t2.start();
t3.start();
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95 }
Java Tab Width: 8
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INS](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feadd2534-1307-4273-82e3-a888d564b7e7%2F0f900966-5b35-4a77-8c2d-d0cfb05dcc1a%2F1hrpnu_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Activities
2 Text Editor
Dec 6 09:28
BadReaderWriter.java
-/Downloads/Telegram Desktop
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stattc class WriterThread extends Thread {
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String name = "":
ArrayList<Integer> numbers;
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WriterThread(String name, ArrayList<Integer> numbers) {
this.name = name;
this.numbers numbers;
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public votd run() {
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for (int count = 0; count < 10; count++) {
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try {
acqutrelock();
try {
Integer entry = numbers.stze() + 1;
numbers.add(entry);
Systen.out.printin(">>
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+ name +" added: " +
+ entry);
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Systen.out.flush();
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finally {
releaselock();
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} catch (InterruptedException e) {
e.printstackTrace();
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public static void main(String[] args) (
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ArrayList<Integer> listofNumbers = new Arraylist<Integer>();
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ReaderThread t1 = new Reader Thread("reader1", ltstofNumbers);
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WriterThread t2 = new Writer Thread("writer1", listofNumbers);
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writerThread t3 = new WriterThread( "writer2", ltstofNumbers);
t1.start();
t2.start();
t3.start();
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95 }
Java Tab Width: 8
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Transcribed Image Text:Activities
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BadReaderWriter.java
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1 import java.util.ArrayList;
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3 public class BadReaderwriter {
private static void acquirelLock() throws InterruptedException {
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// TODO: Add code for acquiring lock for critical section
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private static void releaselLock() throws InterruptedException {
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// TODO: Add code for releasing lock for critical section
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stattc class ReaderThread extends Thread {
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String name = "";
ArrayList<Integer> numbers%3;
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Reader Thread (string name, ArrayList<Integer> numbers) {
this.name = name;
this.numbers = numbers;
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public votd run() {
for (int count = 0; count < 20; count++) {
try {
acquirelock();
try {
Systen.out.println(">>>
Systen.out.flush();
read: "
+ numbers);
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+ name +
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finally {
releaselock();
} catch (InterruptedException e) {
e.printstackTrace();
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stattc class WriterThread extends Thread {
String name = "";
ArrayList<Integer> numbers;
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writerThread(String name, ArrayList<Integer> numbers) {
this.name = name;
this.numbers numbers;
}
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public votd run() (
Java Tab Width: 8
Ln 1, Col 1
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