Class lock vs Object lock

[Amirtharaj Chinnaraj]

hi guys

i need to know the difference between class level lock and Object level lock

i know that the Object level lock can be achieved by synchronized blocks
if i need no other threads to acess the object.

but what is the necessary of Class level lock.and what conditions i have to think
about Class lock

thanks
amir

[Muhammad Khojaye]

what is the necessary of Class level lock.and what conditions i have to think
about Class lock

see this

Hope it helps

[Arunan Ramanathan]

//
but what is the necessary of Class level lock.and what conditions i have to think
about Class lock
//

A static method can't be invoked by an object.A static method can be invoked by calling the class name.
So if we call a synchronized static method then it'll acquire the lock of the class.