How does Java handle multithreading?

Question

How does Java decide which core to assign a thread or a process? Is there any way to control that? to prevent two large threads from executing on the same core?

Basi

Answer 1

How does Java decide which core to assign a thread or a process?

It doesn't. The operating system does.

Is there any way to control that? to prevent two large threads from executing on the same core?

Not within Java.

Basically what I am asking is for further information on either how multi-threading works in Java, or how to control it within Java.

There isn't any. It is all done by the OS.

Basically you are asking the wrong question.