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How does Java handle thread priorities?

Senior Java
Quick Answer Thread priorities (1-10, default 5) hint to the OS scheduler but aren't guaranteed. The JVM maps Java priorities to OS-level priorities which vary by platform. High-priority threads get more CPU time but low-priority threads can still run. Thread.MIN_PRIORITY=1, NORM_PRIORITY=5, MAX_PRIORITY=10. Don't rely on priorities for correctness - use proper synchronization instead.

Answer

Threads have priorities from 1 to 10.
Higher-priority threads are scheduled preferentially but order is not guaranteed.
Actual scheduling depends on JVM and OS.
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