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How to change colors of a Drawable in Android?
...g up from a source image. On this image, I'd like to convert all of the white pixels to a different color, say blue, and then cache the resultant Drawable object so I can use it later.
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Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
...ut for reasons unknown (likely consistency in this context), Python treats it as an assignment). The Python interpreter sees this at module load time and decides (correctly so) that the global scope's Var1 should not be used inside the local scope, which leads to a problem when you try to reference ...
Why is Scala's immutable Set not covariant in its type?
EDIT : Re-written this question based on original answer
3 Answers
3
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Entity Framework rollback and remove bad migration
I'm using EF 6.0 for my project in C# with manual migrations and updates. I have about 5 migrations on the database, but I realised that the last migration was bad and I don't want it. I know that I can rollback to a previous migration, but when I add a new (fixed) migration and run Update-Database,...
How do DATETIME values work in SQLite?
...ing Android apps and need to save date/time of the creation record. The SQLite docs say, however, "SQLite does not have a storage class set aside for storing dates and/or times" and it's "capable of storing dates and times as TEXT, REAL, or INTEGER values".
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How to rethrow the same exception in SQL Server
...orts the error message.
begin try
begin transaction;
...
commit transaction;
end try
begin catch
if @@trancount > 0 rollback transaction;
throw;
end catch
Before SQL 2012
begin try
begin transaction;
...
commit transaction;
end try
begin catch
decl...
Why does Eclipse complain about @Override on interface methods?
...ike Eclpse to stop complaining about the annotation, as I can still build with Maven.
10 Answers
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No Exception while type casting with a null in java
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You can cast null to any reference type without getting any exception.
The println method does not throw null pointer because it first checks whether the object is null or not. If null then it simply prints the string "null". Otherwise it will call the toString met...
INSERT IF NOT EXISTS ELSE UPDATE?
..." solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
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Where in a virtualenv does the custom code go?
...a WSGI application and created a virtualenv called foobar I would start with a directory structure like:
4 Answers
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