java - new Obj, always or sometimes? -

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should make new objects out of in java if know use one?

 obj = new obj();  obj.method();

or just

classofobject.method();

why should bother creation of new obj in situation this?

classofobject.method() works if method static.

having said that, if class represents "thing", user, car, whatever, should make method non-static , use new make object , invoke information on it.

if class container methods don't have objects themselves, e.g. utils class stringutils, can use static methods, e.g. stringutils.touppercase(), , happy it.


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