What is the difference between a synchronized method and synchronized block in Java? [duplicate]

Answer 1

A synchronized method is shorthand. This:

class Something {
    public synchronized void doSomething() {
        ...
    }

    public static synchronized void doSomethingStatic() {
        ...
    }
}

is, for all intents and purposes, equivalent to this:

class Something {
    public void doSomething() {
        synchronized(this) {
            ...
        }
    }

    public static void doSomethingStatic() {
        synchronized(Something.class) {
            ...
        }
    }
}

(Where Something.class is the class object for the class Something.)

So indeed, with a synchronized block, you can be more specific about your lock, and more fine-grained about when you want to use it, but other than that there's no difference.