What is the Atomic action in Concurrency in Java?

Answer

• The Atomic action is the operation which can be performed in a single unit of a task without any interference of the other operations.
• The Atomic action cannot be stopped in between the task. Once started it fill stop after the completion of the task only.
• An increment operation such as a++ does not allow an atomic action.
• All reads and writes operation for the primitive variable (except long and double) are the atomic operation.
• All reads and writes operation for the volatile variable (including long and double) are the atomic operation.
• The Atomic methods are available in java.util.Concurrent package.