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Receiver not registered exception error?
...he code that you didn't include in this post) or was not registered, then call to unregisterReceiver throws IllegalArgumentException. In your case you need to just put special try/catch for this exception and ignore it (assuming you can't or don't want to control number of times you call unregisterR...
How to override !important?
...he !important rule.
td.a-semantic-class-name { height: 100px; }
I personally never use !important in my style sheets. Remember that the C in CSS is for cascading. Using !important will break this.
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How to check if a process is running via a batch script
...orked for me nicely (windows XP SP3). IMHO this is the most elegant way of all proposed here, using just the tools shipped with windows
– hello_earth
Jul 8 '10 at 15:30
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Are static variables shared between threads?
...one thread makes becoming visible to other threads in a timely manner (actually the JVM has no obligation to make those changes visible to you at all, in any time frame), unless you establish a happens-before relationship.
Here's a quote from that link (supplied in the comment by Jed Wesley-Smith):
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Set selected item of spinner programmatically
...e answer by Marco HC uses Runnable wich is a last resort due to additional CPU load. The answer is - you should simply choose correct place to call to setSelection(), for example it works for me:
@Override
public void onResume() {
super.onResume();
yourSpinner.setSelection(pos);
}
But ...
psql invalid command \N while restore sql
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Postgres uses "\N" as substitute symbol for NULL value. But all psql commands starts by backslash "\" symbol. So you can get this messages, when probably copy statement fails, but a loading of dump continues. This message is only false alarm. You have to search a lines before for reas...
How can I clear or empty a StringBuilder? [duplicate]
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Two ways that work:
Use stringBuilderObj.setLength(0).
Allocate a new one with new StringBuilder() instead of clearing the buffer.
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Convert Decimal to Double
...fected by small differences. Since Double is a type which is native to the CPU (internal representation is stored in base 2), calculations made with Double perform better then Decimal (which is represented in base 10 internally).
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Boolean vs boolean in Java
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It should be noted the a Boolean actually has 3 states... true, false and null where a boolean has the logical 2 states (true and false)
– respectTheCode
Jun 6 '14 at 15:46
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Difference between StringBuilder and StringBuffer
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and synchronization is virtually never required. If someone wants to synchronize on a StringBuilder, they can just surround the entire block of code with a synchronized (sb) { } on the instance
– locka
Apr 24 '13 a...