[QUERY] Volatile Example

[DivyaSaravanan]

Article and Module Links
Guide to the Volatile Keyword in Java.

Describe the Issue

The volatile example provided works fine, even without adding volatile keyword.

https://github.com/eugenp/tutorials/blob/master/core-java-modules/core-java-concurrency-simple/src/main/java/com/baeldung/concurrent/volatilekeyword/TaskRunner.java#L6

To Reproduce
Steps to reproduce the behavior:

• Go to Task Runner

• Remove the Volatile keyword next to the field ready.

• Execute the code, still, the code works fine.

Expected Behavior
If the volatile keyword is not present, ideally the reader thread and main thread would have local copies of the ready variable, and the while loop would not exit.

Does the above vary in cases, and not always expected?

Screenshots
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Environment (please complete the following information):

• OS: [e.g. Windows]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Additional Context
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