JVM (Process) Thread-5 Thread-1 Thread-2 Thread-3 Thread-4 Stack Stack Stack Stack tack local |fixed = 6 fixed = 6 fixed = 6 variable fixed = 6 fixed = 6 counter counter counter counter counter Instance coun Counter Integer ++count performs 3 operations: Heap Memory 1. get value of count from heap 2 add 1 to count (ie, count = count + 1) 3. write the new value back to the heap memory JVM (Process) Thread-5 Thread-1 Thread-2 Thread-3 Thread-4 Stack Stack Stack Stack tack local |fixed = 6 fixed = 6 fixed = 6 variable fixed = 6 fixed = 6 counter counter counter counter counter Instance coun Counter Integer ++count performs 3 operations: Heap Memory 1. get value of count from heap 2 add 1 to count (ie, count = count + 1) 3. write the new value back to the heap memory