How two different class threads communicate with each other?. send example code

How two different class threads communicate with each
other?. send example code.

Question Posted / athishankar

4 Answers
8458 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How two different class threads communicate with each other?. send example code...

Answer / puneet khanna

The threads in java follow Mutual exclusion( synchronized)
and co-operation;

for co-operation they need to talk to each other by messages
saying " i am waiting in the wait q anyone can acquire the
lock of the object" or" i have acquired the lock now by
notify() to the last thread who called wait() or by
notifyall() to all the threads who are in the wait q"

Is This Answer Correct ?

4 Yes

0 No

How two different class threads communicate with each other?. send example code...

Answer / siva kumar g

By Using the concept called Inter Thread Communication

Is This Answer Correct ?

6 Yes

3 No

How two different class threads communicate with each other?. send example code...

Answer / modi[achir communication]

using wait() and notify() two different class threads
communicate with each other.
For example:

public class LoggingThread extends Thread {
private LinkedList linesToLog = new LinkedList();
private volatile boolean terminateRequested;

public void run() {
try {
while (!terminateRequested) {
String line;
synchronized (linesToLog) {
while (linesToLog.isEmpty())
linesToLog.wait();
line = (String) linesToLog.removeFirst();
}
doLogLine(line);
}
} catch (InterruptedException ex) {
Thread.currentThread().interrupt();
}
}

private void doLogLine(String line) {
// ... write to wherever
}

public void log(String line) {
synchronized (linesToLog) {
linesToLog.add(line);
linesToLog.notify();
}
}
}

Is This Answer Correct ?

1 Yes

0 No

How two different class threads communicate with each other?. send example code...

Answer / tulasi prasad

Below I am showing the best example for ur Query.

class Rack
{
int n;
boolean avialable = false;
synchronized int get()
{
if(!avialable )
try
{
wait();
}
catch(InterruptedException e)
{
System.out.println("InterruptedException caught");
}
System.out.println("got:" + n);
avialable = false;
notify();
return n;
}

synchronized int put(int n)
{
if(avialable )
try
{
wait();
}
catch(InterruptedException e)
{
System.out.println("InterruptedException caught");
}
this.n = n;
avialable = true;
System.out.println("put:" + n);
notify();
return n;
}
}

class Producer implements Runnable
{
Rack k;
Producer(Rack k)
{
this.k = k;
new Thread(this, "Producer").start();
}
public void run()
{
int i = 1;
while(true)
{
k.put(i++);
}
}
}
class Consumer implements Runnable
{
Rack k;
Consumer(Rack k)
{
this.k = k;
new Thread(this, "Consumer").start();
}
public void run()
{
while(true)
{
k.get();
}
}
}
class ProducerConsumerProblem
{
public static void main(String args[])
{
Rack k = new Rack();
new Producer(k);
new Consumer(k);
System.out.println("press control - c to stop. ");
}
}

Is This Answer Correct ?

1 Yes

0 No

Post New Answer