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Should I declare Jackson's ObjectMapper as a static field?
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Yes, that is safe and recommended.
The only caveat from the page you referred is that you can't be modifying configuration of the mapper once it is shared; but you are not changing configuration so that is fine. If you did need to cha...
How to check that an object is empty in PHP?
How to find if an object is empty or not in PHP.
11 Answers
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What is the maximum length of a valid email address?
What is the maximum length of a valid email address? Is it defined by any standard?
6 Answers
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How do I safely pass objects, especially STL objects, to and from a DLL?
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The short answer to this question is don't. Because there's no standard C++ ABI (application binary interface, a standard for calling conventions, data packing/alignment, type size, etc.), you will have to jump through a lot of hoops to try and en...
java: Class.isInstance vs Class.isAssignableFrom
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clazz.isAssignableFrom(Foo.class) will be true whenever the class represented by the clazz object is a superclass or superinterface of Foo.
clazz.isInstance(obj) will be true whenever the object obj is an instance of the class cla...
Static Classes In Java
Is there anything like static class in java?
13 Answers
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Is there any difference between “!=” and “” in Oracle Sql?
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No there is no difference at all in functionality.
(The same is true for all other DBMS - most of them support both styles):
Here is the current SQL reference: https://docs.oracle.com/database/121/SQLRF/conditions002.htm#CJAGAABC
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Cleanest way to get last item from Python iterator
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answered Jan 26 '10 at 10:56
Thomas WoutersThomas Wou...
Does a finally block always run?
Is there any condition where finally might not run in java? Thanks.
12 Answers
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What is the difference between JOIN and UNION?
What is the difference between JOIN and UNION ? Can I have an example?
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