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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...
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
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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.
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How to update a single library with Composer?
I need to install only 1 package for my SF2 distribution (DoctrineFixtures).
8 Answers
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How to calculate number of days between two given dates?
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DanaDana
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What's the difference between array_merge and array + array?
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The difference is:
The + operator takes the union of the two arrays, whereas the array_merge function takes the union BUT the duplicate keys are overwritten.
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string.ToLower() and string.ToLowerInvariant()
What's the difference and when to use what? What's the risk if I always use ToLower() and what's the risk if I always use ToLowerInvariant() ?
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Make page to tell browser not to cache/preserve input values
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Are you explicitly setting the values as blank? For example:
<input type="text" name="textfield" value="">
That should stop browsers putting data in where it shouldn't. Alternatively, you can add the autocomplete attribute to the form tag:
<form autocomplet...
Adding a column to an existing table in a Rails migration
... (rails generate migration add_email_to_users email:string will do the trick).
It will create a migration file containing line:
add_column :users, email, string
Then do a rake db:migrate and it'll run the new migration, creating the new column.
If you have not yet run the original migration you can...