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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
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@AlexanderSupertramp, because of string interning.
– Chris Rico
Feb 1 '15 at 9:34
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Hibernate SessionFactory vs. JPA EntityManagerFactory
...lback method annotations like @PrePersist, @PostPersist,@PreUpdate with no extra configuration.
Using similar callbacks while using SessionFactory will require extra efforts.
Related Hibernate docs can be found here and here.
Related SOF Question and Spring Forum discussion
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OS specific instructions in CMAKE: How to?
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STREQUAL accepts variables (in addition to string) as first operand, so it could be the more concise if(CMAKE_SYSTEM_NAME STREQUAL "Linux")...
– Ad N
Jul 6 at 14:37
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Compare equality between two objects in NUnit
...t seems to work out great. The test runner results info will show the JSON string comparison (the object graph) included so you see directly what's wrong.
Also note! If you have bigger complex objects and just want to compare parts of them you can (use LINQ for sequence data) create anonymous object...
What does the smiley face “:)” mean in CSS?
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Just to throw an extra part to this answer. The answer is great and correct, but missing this the fact that this is not best practice. As a general rule, you should do your best to give the best experience in all browsers that your user base ...
How to compare objects by multiple fields
...NullPointerException when one of the fields I am comparing is null, like a String. Is there anyway to keep this compare format but allow it to be null safe?
– rveach
May 4 '18 at 21:15
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How to hash some string with sha256 in Java?
How can I hash some string with sha256 in Java? Does anybody know of any free library for this?
15 Answers
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Insert into … values ( SELECT … FROM … )
...2, someInt, someVarChar )
SELECT table2.column1, table2.column2, 8, 'some string etc.'
FROM table2
WHERE table2.ID = 7;
I've only used this syntax with Access, SQL 2000/2005/Express, MySQL, and PostgreSQL, so those should be covered. It should also work with SQLite3.
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Does using “new” on a struct allocate it on the heap or stack?
...tructor (e.g. new Guid()) or a parameterful constructor (e.g. new Guid(someString)). These generate significantly different IL. To understand why, you need to compare the C# and CLI specs: according to C#, all value types have a parameterless constructor. According to the CLI spec, no value types ha...
How do I create a copy of an object in PHP?
... you said that only primitive member variables gets copied: are PHP arrays/strings considered primitive member variables, so they get copied, am I right?
– Marco Demaio
Jul 11 '10 at 10:48
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