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IntelliJ - Convert a Java project/module into a Maven project/module
I have a project on Bitbucket. Only the sources are committed. To retrieve the project onto a new machine, I used Version Control > Checkout from Version Control from within IntelliJ.
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List columns with indexes in PostgreSQL
I would like to get the columns that an index is on in PostgreSQL.
23 Answers
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Android get free size of internal/external memory
I want to get the size of free memory on internal/external storage of my device programmatically. I'm using this piece of code :
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Only using @JsonIgnore during serialization, but not deserialization
...t that is sent to and from the server. When I send out the user object, I don't want to send the hashed password to the client. So, I added @JsonIgnore on the password property, but this also blocks it from being deserialized into the password that makes it hard to sign up users when they ain't go...
Is LINQ to SQL Dead or Alive?
...ey're solid already and the missing designer features can easily be bolted on.
2) One of the PDC EF sessions show that they have learnt a couple of lessons from the EFv1 fiasco and they are now copy-and-pasting a lot of the goodies from L2S into EF and pretending it is new EF stuff. In other words,...
What's “requestCode” used for on PendingIntent?
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requestCode is used to retrieve the same pending intent instance later on (for cancelling, etc).
Yes, my guess is the alarms will override each other. I would keep the request codes unique.
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How do I get the AM/PM value from a DateTime?
The code in question is below:
13 Answers
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Should I use Java's String.format() if performance is important?
We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe).
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Image comparison - fast algorithm
...ere are many others).
The first is a standard approach in computer vision, keypoint matching. This may require some background knowledge to implement, and can be slow.
The second method uses only elementary image processing, and is potentially faster than the first approach, and is straightforw...
How to select rows with no matching entry in another table?
I'm doing some maintenance work on a database application and I've discovered that, joy of joys, even though values from one table are being used in the style of foreign keys, there's no foreign key constraints on the tables.
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