Author Question: Analyze the following code.// Test.java: Define threads using the Thread classimport ... (Read 74 times)

tnt_battle · **on:** May 6, 2020

Analyze the following code.

// Test.java: Define threads using the Thread class
import java.util.*;

public class Test {
private Stack stack = new Stack();
private int i = 0;

/** Main method */
public static void main(String[] args) {

new Test();

}

public Test() {

// Start threads

new Producer().start();

new Consumer().start();

}

class Producer extends Thread {

public void run() {

while (true) {

System.out.println("Producer: put " + i);

stack.push(new Integer(i++));

synchronized (stack) {

notifyAll();

}

}

class Consumer extends Thread {

public void run() {

while (true) {

synchronized (stack) {

try {

while (stack.isEmpty())

stack.wait();

System.out.println("Consumer: get " + stack.pop());

}

catch (InterruptedException ex) {

ex.printStackTrace();

}

}
}
◦ The program has a compilation error on the notifyAll() method in the Producer class because it is not invoked from the stack object.
◦ The program will throw an exception because the notifyAll() method in the Producer class is not invoked from the stack object.
◦ The program has a logic error because the lock obtained by the synchronized block for notifyAll in the Producer class is stack and it should be this (i.e., synchronized (this) { notifyAll(); }).
◦ The program creates two threads: one to add data to the stack and the other to get data from the stack.

kalskdjl1212 · **Reply #1 on:** May 6, 2020

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 25% of students answer this correctly