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Why can I throw null in Java? [duplicate]
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@bharal: It might not be possible to know at compile time. In the exact case of throw null, it is, but in a more general case where the exception object is decided upon at runtime, there may be no way to know. Evidently the addition (to the JLS) of a special case...
How do I add a path to PYTHONPATH in virtualenv
... Unfortunately this does not work as an override. It appends the path, so if you're developing it doesn't work.
– Erik Aronesty
Aug 29 '18 at 21:34
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Maven dependency for Servlet 3.0 API?
...ption?
The maven repository from Java.net indeed offers the following artifact for the WebProfile:
<repositories>
<repository>
<id>java.net2</id>
<name>Repository hosting the jee6 artifacts</name>
<url>http://download.java.net/maven/2</ur...
iPhone: How to get current milliseconds?
...SDate.timeIntervalSince1970;// all those brackets are really old fashioned if you ask me.
– Pizzaiola Gorgonzola
Oct 2 '13 at 13:27
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How to version control a record in a database
...e change in a second (i.e. do not put RevisionDate into the primary key).
Now, every time you update FOO, just before you do the update you insert the old values into FOO_HISTORY. You do this at some fundamental level in your design so that programmers can't accidentally miss this step.
If you wa...
Convert a float64 to an int in Go
... Such casts have a problem in Go that can be unexpected (at least if you come from Java): "In all non-constant conversions involving floating-point or complex values, if the result type cannot represent the value the conversion succeeds but the result value is implementation-dependent." (go...
Block Comments in Clojure
... is also the comment macro which has a similar effect, but is implemented differently.
Both the above require that the thing that you're commenting out is otherwise a syntactically correct S-expression.
Some Lisp dialects have a multi-line comment that can contain arbitrary text, but I don't see o...
How to pip or easy_install tkinter on Windows
...ws, I believe you installed Python through the binaries on their website?
If so, Then most probably you are typing the command wrong. It should be:
import Tkinter as tk
Note the capital T at the beginning of Tkinter.
For Python 3,
import tkinter as tk
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Cell spacing in UICollectionView
How do I set cell spacing in a section of UICollectionView ? I know there is a property minimumInteritemSpacing I have set it to 5.0 still the spacing is not appearing 5.0. I have implemented the flowout delegate method.
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How to find the mime type of a file in python?
... the files are stored in BLOBs, as specified in the question, you may not know the file extension.
– Mechanical snail
Aug 1 '11 at 6:05
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