Other way to synchronize method

Question

How to synchronize method in java other than using synchronized keyword?

Answer 1

You could use the java.util.concurrent.locks package, especially Lock interface:

Lock l = ...; 
l.lock();
try {
    // access the resource protected by this lock
} finally {
    l.unlock();
}

See here.

Answer 2

Depends on you concrete needs.

See Java concurrent package for higher level synchronization abstractions. Note that they may still use synchronized underneath ...