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qb159.java
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qb159.java
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// Producer-Consumer Problem using wait & notify
class procon {
boolean status = false;
int data;
synchronized void produce(int n) {
if (status) {
System.out.println("Producer Waiting..");
try {
wait();
} catch (Exception e) {
}
}
data = n;
System.out.println("Produces: " + data);
status = true;
notify();
}
synchronized void consume() {
if (!status) {
System.out.println("Consumer Waiting..");
try {
wait();
} catch (Exception e) {
}
}
System.out.println("Consume: " + data);
status = false;
notify();
}
}
class Producer extends Thread {
procon pc;
public Producer(procon pc) {
this.pc = pc;
}
public void run() {
for (int i = 1; i <= 5; i++) {
pc.produce(i);
}
}
}
class Consumer extends Thread {
procon pc;
public Consumer(procon pc) {
this.pc = pc;
}
public void run() {
for (int i = 1; i <= 5; i++) {
pc.consume();
}
}
}
class solution {
public static void main(String[] args) {
procon pc = new procon();
Producer p = new Producer(pc);
Consumer c = new Consumer(pc);
p.start();
c.start();
}
}