What is the “volatile” keyword used for?

Question

I read some articles about the volatile keyword but I could not figure out its correct usage. Could you please tell me what it should be used for in C# and in

Answer 1

The volatile keyword has different meanings in both Java and C#.

Java

From the Java Language Spec :

A field may be declared volatile, in which case the Java memory model ensures that all threads see a consistent value for the variable.

C#

From the C# Reference on the volatile keyword:

The volatile keyword indicates that a field can be modified in the program by something such as the operating system, the hardware, or a concurrently executing thread.