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Change private static final field using Java reflection
...teger's cache, mutating a String, etc
Caveats
Extreme care should be taken whenever you do something like this. It may not work because a SecurityManager may be present, but even if it doesn't, depending on usage pattern, it may or may not work.
JLS 17.5.3 Subsequent Modification of Final Field...
How to remove all event handlers from an event
...d a solution on the MSDN forums. The sample code below will remove all Click events from button1.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
button1.Click += button1_Click;
button1.Click += button1_Click2;
button2.Click += but...
Parsing query strings on Android
...ted. The answer of android.net.URI.getQueryParameter() has a bug which breaks spaces before JellyBean.
Apache URLEncodedUtils.parse() worked, but was deprecated in L, and removed in M.
So the best answer now is UrlQuerySanitizer. This has existed since API level 1 and still exists. It also makes y...
What's the use/meaning of the @ character in variable names in C#?
..."params". The proxy object that was generated contained a property that looked like this:
9 Answers
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Conceptually, how does replay work in a game?
I was kind of curious as to how replay might be implemented in a game.
12 Answers
12
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Java synchronized static methods: lock on object or class
...
Since a static method has no associated object, will the synchronized keyword lock on the class, instead of the object?
Yes. :)
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How do I get the base URL with PHP?
... );
}
echo url();
#=> http://127.0.0.1/foo
Per this answer, please make sure to configure your Apache properly so you can safely depend on SERVER_NAME.
<VirtualHost *>
ServerName example.com
UseCanonicalName on
</VirtualHost>
NOTE: If you're depending on the HTTP_HOST ke...
SQL WHERE ID IN (id1, id2, …, idn)
...column name lots of times; additionally the SQL engine doesn't immediately know that you want to check if the value is one of the values in a fixed list. However, a good SQL engine could optimize it to have equal performance like with IN. There's still the readability issue though...
Option 3 is sim...
T-SQL: Selecting rows to delete via joins
... ON b.Bid = a.Bid
AND [my filter condition]
should work
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How exactly to use Notification.Builder
...ate: the NotificationCompat.Builder class has been added to the Support Package so we can use this to support API level v4 and up:
http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html
...