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Amazon Interview Question: Design an OO parking lot [closed]
... to be either a Handicapped, Regular or Compact. ParkingSpace should be an interface rather.
– name_masked
Dec 11 '10 at 18:22
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Android Preferences: How to load the default values when the user hasn't used the preferences-screen
...rriding the user's settings each time your Activity is created
Take a look into PreferenceManager.setDefaultValues in Android API for further investigation.
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Why do most fields (class members) in Android tutorial start with `m`?
... letters of variables as indication of type, like 'b' for boolean, 'i' for integer and so on.
14 Answers
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What is the Swift equivalent of -[NSObject description]?
...ring {
return "<\(type(of: self)): foo = \(foo)>"
}
}
print(MyClass()) // prints: <MyClass: foo = 42>
Note: type(of: self) gets the type of the current instances instead of explicitly writing ‘MyClass’.
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Clear Application's Data Programmatically
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There's a new API introduced in API 19 (KitKat):
ActivityManager.clearApplicationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)...
Python pandas: fill a dataframe row by row
...sign a dictionary
to each element of the row y probably not what you want; converting to a Series tells pandas
that you want to align the input (for example you then don't have to to specify all of the elements)
In [7]: df = pandas.DataFrame(columns=['a','b','c','d'], index=['x','y','z'])
In [8]: ...
When do I use fabs and when is it sufficient to use std::abs?
...bs; it's overloaded for all the numerical types.
In C, abs only works on integers, and you need fabs for floating point values. These are available in C++ (along with all of the C library), but there's no need to use them.
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What's the difference between a file descriptor and file pointer?
I want to know the difference between a file descriptor and file pointer.
9 Answers
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Unable to find valid certification path to requested target - error even after cert imported
...ed with ssl:
record enable per-record tracing
handshake print each handshake message
keygen print key generation data
session print session activity
defaultctx print default SSL initialization
sslctx print SSLContext tracing
sessioncache print ...
How to check if UILabel is truncated?
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Ah, thanks for pointing that out, I've corrected the sample code.
– progrmr
Jun 23 '10 at 3:53
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