Synchronized Block
Synchronized Block
Instead of synchronizing an entire method, we can synchronize only the critical section.
This is called the critical section. Only one thread can execute this block at a time for the same object.
class Counter {
int count = 0;
void increment() {
synchronized (this) {
count++;
}
}
}
public class SynchroThreadBlockDemo {
public static void main(String[] args) throws InterruptedException {
Counter counter = new Counter();
Thread t1 = new Thread(() -> {
for (int i = 0; i < 1000; i++) {
counter.increment();
}
});
Thread t2 = new Thread(() -> {
for (int i = 0; i < 1000; i++) {
counter.increment();
}
});
t1.start();
t2.start();
t1.join();
t2.join();
System.out.println("Final count: " + counter.count);
}
}