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Can Android Studio be used to run standard Java projects?
For those times when you want to isolate the Java and give it a quick test..
13 Answers
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ActiveRecord OR query
...ost.arel_table
results = Post.where(
t[:author].eq("Someone").
or(t[:title].matches("%something%"))
)
The resulting SQL:
ree-1.8.7-2010.02 > puts Post.where(t[:author].eq("Someone").or(t[:title].matches("%something%"))).to_sql
SELECT "posts".* FROM "posts" WHERE (("posts"."...
Python multiprocessing PicklingError: Can't pickle
I am sorry that I can't reproduce the error with a simpler example, and my code is too complicated to post. If I run the program in IPython shell instead of the regular Python, things work out well.
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Can I convert long to int?
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Just do (int)myLongValue. It'll do exactly what you want (discarding MSBs and taking LSBs) in unchecked context (which is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:
int myIntValue = unc...
How to escape text for regular expression in Java
Does Java have a built-in way to escape arbitrary text so that it can be included in a regular expression? For example, if my users enter "$5", I'd like to match that exactly rather than a "5" after the end of input.
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Write a function that returns the longest palindrome in a given string
I thought of a solution but it runs in O(n^2) time
22 Answers
22
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Remove elements from collection while iterating
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Let me give a few examples with some alternatives to avoid a ConcurrentModificationException.
Suppose we have the following collection of books
List<Book> books = new ArrayList<Book>();
books.add(new Book(new ISBN("0-201-63361-2")));
books...
What does '
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It's a shorthand for <?php echo $a; ?>.
It's enabled by default since 5.4 regardless of php.ini settings.
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How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS
How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS or Internet Explorer-specific JavaScript code?
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How do I look inside a Python object?
...and dir() are particularly useful for inspecting the type of an object and its set of attributes, respectively.
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