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Is there a way to define a min and max value for EditText in Android?
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There is a small error in Pratik's code. For instance, if a value is 10 and you add a 1 at the beginning to make 110, the filter function would treat the new value as 101.
See below for a fix to this:
@Override
public CharSequence filter(C...
Difference between staticmethod and classmethod
... class rather than from a class instance. A.foo(1) would have raised a TypeError, but A.class_foo(1) works just fine:
A.class_foo(1)
# executing class_foo(<class '__main__.A'>,1)
One use people have found for class methods is to create inheritable alternative constructors.
With staticmet...
What's the best practice for primary keys in tables?
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I avoid using natural keys for one simple reason -- human error. Although natural unique identifiers are often available (SSN, VIN, Account Number, etc.), they require a human to enter them correctly. If you're using SSNs as a primary key, someone transposes a couple of numbers duri...
What does Class mean in Java?
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This <?> is a beast. It often leads to confusion and errors, because, when you see it first, then you start believing, <?> is a wildcard for any java type. Which is .. not true. <?> is the unknown type, a slight and nasty difference.
It's not a problem when you use...
Which timestamp type should I choose in a PostgreSQL database?
..._Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check constraint "my_tbl_my_timestamp_check"
test=> SET timezone = 'UTC';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
INSERT 0 1
It's not 100% perfect, b...
Why does Math.floor return a double?
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So that error and other non integer values can correctly cascade through a series of calculations.
For instance, if you feed Not a Number (NaN) into Math.floor, it'll pass it along.
If it returned integer it couldn't pass these sta...
How to display full (non-truncated) dataframe information in html when converting from pandas datafr
...er is correct, i.e. it should not be set to None. Otherwise, will get ValueError: Value must have type '<class 'int'>' error.
– xpt
Aug 4 '16 at 15:41
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SSH to Elastic Beanstalk instance
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If you get the error "Permission denied (publickey)" even though you followed the instructions above, the following might explain why: If your EB setup launches more than one EC2 instance, you have to check which of them gets the key pair a...
Force update of an Android app when a new version is available
...ion)){
if(!isFinishing()){ //This would help to prevent Error : BinderProxy@45d459c0 is not valid; is your activity running? error
showUpdateDialog();
}
}
}
else
background.start();
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Is APC compatible with PHP 5.4 or PHP 5.5?
...nd apc will not recognize certain classes when cached.
I think this is the error Simon is talking about.
I heard there were some fixes in the trunk, but I also tried the latest trunk sources, but the same errors keep coming back.
I think php without a opcode cacher (there is none available right no...