Threading in Java: How to lock an object?

Question

The following Function is executing in its own thread:

private void doSendData()
{
    try {

           //writeToFile(); // just a temporary location of a c         


        

Answer 1

In general when you have multi-threaded program in Java you need to lock the shared variable by using synchronized (key-word) then in anytime just one thread can access the shared memory.