Java: why Thread.sleep() and yield() are static?

Question

Why sleep() and yield() methods are defined as static methods in java.lang.Thread class? Answer The code would only execute when someXThread was executing, in which case telling someYThread to yield would be pointless. So since the only thread worth calling yield on is the current thread, they make the method static so you won't waste time trying to call yield

Accepted Answer

The code would only execute when someXThread was executing, in which case telling someYThread to yield would be pointless. So since the only thread worth calling yield on is the current thread, they make the method static so you won&#8217;t waste time trying to call yield on some other thread.

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