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When using `thread` , the result is expected but when using `launch` from Kotlin coroutine, the result is wrong and not expected.

Code: <https://pl.kotl.in/cBD4j9XWb>

In the code, as expected when using the `thread` code in the for loop, the result prints 15000
but when using `launch` for loop, the result prints 0 !? which is not expected.

Why is this happening and why `launch` is giving wrong answer?

you're blocking the executor with `Thread.sleep`. `delay` would give you the expected value.

but you should not be delaying and use `coroutineScope` or `join` instead.

Untitled

Thank you for the extra details. It works.