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Is there a easy way for remeber those rules about reference casting?
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Keen Chen
Ranch Hand
Joined: Nov 12, 2002
Posts: 47
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Hi, ALL:
Rules in reference casting,
between such as
final or not-final object, interface, primitive array, reference array.........
and permutation and combination...
so many..
Who can tell me a easy to remember?...
Thx in advance.
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SCJP 1.4 100% @ Peking, China <br />~~~~~~~~~~~~~~~~~~~~~<br />但使龙城飞将在, 不教胡马度阴山!
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Albert Lee
Greenhorn
Joined: Aug 04, 2002
Posts: 18
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You can upcast implicitly,but you must downcast explicitly.that's the rule.
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Everyday create your history.
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Keen Chen
Ranch Hand
Joined: Nov 12, 2002
Posts: 47
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Thx Lee.
but i believe it's not so simple
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Michael Taupitz
Greenhorn
Joined: Nov 26, 2002
Posts: 11
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It sounds simple, but is often hard to find out.
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SCJP 1.4, OCUPF (OMG Certified UML Professional Fundamental), SCEA - I
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subject: Is there a easy way for remeber those rules about reference casting?
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