multithreading - How to synchronize access to class field in Java? -

there variable in class, actively used multiple threads. example:

public class {     private int magicvar;      private void somemethod() {         // operations magicvar     }      public synchronized void somepublicmethod() {         // operations magicvar     }      private class b extends thread {          @override         private void run() {             // operations magicvar         }      } } 

how organize access variable in case? describe private synchronized setter , getter? or mark field violate?

that depends on how plan use class. synchronization not implementation detail, part of design.

consider using atomicinteger when protecting access integer.