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Should methods that throw RuntimeException indicate it in method signature?
...n any way. Such
problems include arithmetic exceptions, such as dividing by zero;
pointer exceptions, such as trying to access an object through a null
reference; and indexing exceptions, such as attempting to access an
array element through an index that is too large or too small.
Runt...
Is there a way to simulate the C++ 'friend' concept in Java?
... only he can construct and access a Romeo.Love instance, which is required by Juliet to cuddle her (or else she'll slap you with a NullPointerException).
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“java.lang.OutOfMemoryError : unable to create new native Thread”
....
Analyzed the java thread dumps observed nearly 61K threads are blocked by one of our method, which is causing this issue . Below is the portion of Thread dump
"SimpleAsyncTaskExecutor-16562" #38070 prio=5 os_prio=0 tid=0x00007f9985440000 nid=0x2ca6 waiting for monitor entry [0x00007f9d58c2d000...
How to download image using requests
...ate over the response.
To use the response.raw file-like object will not, by default, decode compressed responses (with GZIP or deflate). You can force it to decompress for you anyway by setting the decode_content attribute to True (requests sets it to False to control decoding itself). You can the...
Git: list only “untracked” files (also, custom commands)
... I use git clean -dfx a lot throughout the day.
You can create custom git by just writing a script called git-whatever and having it in your path.
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Should accessing SharedPreferences be done off the UI Thread?
... this wonderful post, find below the link to the blog post mentioned above by @Brad Fitzpatrick : android developer's blog post on strict mode by Brad . The post also has a link to sample code for using apply(from gingerbread onwards) or commit(froyo) based on the android version for storing shared...
Can a recursive function be inline?
...nd that the above code would lead to "infinite compilation" if not handled by compiler correctly.
9 Answers
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How to convert vector to array
...not known at the time you define your class and which are later on created by flushing various vectors and using their size-parameter to determine how much space is to be used. Another example: a simple function void arrayTest(unsigned int arrSize), that creates an array (short arr[arrSize];) in it ...
Solutions for INSERT OR UPDATE on SQL Server
...t-or-update you can easily
get primary key violation.
Solutions provided by @Beau Crawford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @...
How do I fix "The expression of type List needs unchecked conversion…'?
...for you—although it would have been possible to implement it to do so.
By doing your own cast up front, you're "complying with the warranty terms" of Java generics: if a ClassCastException is raised, it will be associated with a cast in the source code, not an invisible cast inserted by the comp...