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“Java DateFormat is not threadsafe” what does this leads to?
Everybody cautions regarding Java DateFormat not being thread safe and I understand the concept theoretically.
11 Answers
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generate days from date range
...es, or temp tables. The subquery generates dates for the last 10,000 days, and could be extended to go as far back or forward as you wish.
select a.Date
from (
select curdate() - INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) ) DAY as Date
from (select 0 as a union all select 1 un...
How to adjust layout when soft keyboard appears
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Just add
android:windowSoftInputMode="adjustResize"
in your AndroidManifest.xml where you declare this particular activity and this will adjust the layout resize option.
some source code below for layout design
<?xml version...
Force unmount of NFS-mounted directory [closed]
... @Daniel: sure, but it is a Linux question (tagged as such even), and Linux does have it.
– Jürgen A. Erhard
Jul 4 '11 at 13:05
5
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How to resolve “Waiting for Debugger” message?
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Some devices will only let the debugger attach if the application has the android.permission.SET_DEBUG_APP permission set in its manifest file:
<manifest>
<uses-permission android:name="android.permission.SET_DEBUG_APP"></uses-permission>
</manifest>
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How to run Django's test database only in memory?
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if 'test' in sys.argv:
DATABASES['default'] = {'ENGINE': 'sqlite3'}
And finally in Django 1.3 and 1.4:
if 'test' in sys.argv:
DATABASES['default'] = {'ENGINE': 'django.db.backends.sqlite3'}
(The full path to the backend isn't strictly necessary with Django 1.3, but makes the setting fo...
Rails has_and_belongs_to_many migration
I have two models restaurant and user that I want to perform a has_and_belongs_to_many relationship.
4 Answers
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In C#, what happens when you call an extension method on a null object?
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I was referring to the difference between call and callvirt il instructions. In one edit I actually tried to href the two Opcodes pages, but the editor barfed at the links...
– Marc Gravell♦
May 11 '09 at 9:48
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Simplest way to read json from a URL in java
This might be a dumb question but what is the simplest way to read and parse JSON from URL in Java ?
11 Answers
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Java Name Hiding: The Hard Way
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You can cast a null to the type and then invoke the method on that (which will work, since the target object isn't involved in invocation of static methods).
((net.foo.X) null).doSomething();
This has the benefits of
being side-effect free (a problem w...