Visibility modifier with abstract method signatures in Java
문제
Quick question:
Is the proper syntax:
public abstract void myMethod();
OR
abstract public void myMethod();
... The difference being the order of the keywords public
and abstract
.
Both compile without warnings, but which is the proper syntax?
해결책
According to JLS section 8.1.1
ClassModifier: one of
Annotation public protected private
abstract static final strictfp
If two or more class modifiers appear in a class declaration, then it is customary, though not required, that they appear in the order consistent with that shown above in the production for ClassModifier.
다른 팁
Either is "proper". The difference is a matter of style. I prefer the first.
Both are syntactically correct but
public abstract void myMethod();
is more common. You usually declare the visibility first.
Most common practice is public abstract
. I can't actually recall any example or book or any code I've worked with that does the opposite.
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