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What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
...wer above, after reading an example from Android-er I found you can easily convert your preference activity into a preference fragment. If you have the following activity:
public class MyPreferenceActivity extends PreferenceActivity
{
@Override
protected void onCreate(final Bundle savedInst...
How can I find the number of days between two Date objects in Ruby?
... will have a 1 concatenated to the end. yikes! you may want to use to_i to convert the result to an integer
– jwal
Jan 24 '12 at 18:07
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Print multiple arguments in Python
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#Normal string concatenation
print("sum of", a , "and" , b , "is" , c)
#convert variable into str
print("sum of " + str(a) + " and " + str(b) + " is " + str(c))
# if you want to print in tuple way
print("Sum of %s and %s is %s: " %(a,b,c))
#New style string formatting
print("sum of {} and {}...
How to find out what type of a Mat object is with Mat::type() in OpenCV
...u need to know what type an internal OpenCV array is.
Remember OpenCV will convert the jpeg into BGR (or grey scale if you pass '0' to imread) - so it doesn't tell you anything about the original file.
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Python Progress Bar
...a console progress bar
## Accepts a float between 0 and 1. Any int will be converted to a float.
## A value under 0 represents a 'halt'.
## A value at 1 or bigger represents 100%
def update_progress(progress):
barLength = 10 # Modify this to change the length of the progress bar
status = ""
...
Integrating the ZXing library directly into my Android application
...l. But can u also provide the code, where the reverse can be done. I mean, convert the QR code back to the String?
– Shaon Hasan
May 15 '14 at 15:31
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How to model type-safe enum types?
...nother class that is basically a wrapper around a string and can be freely converted in both directions (as is the case for Symbol). I guess that's what you meant when saying "It won't give you any type safety", it just wasn't very clear given that OP explicitly asked for type safe solutions. I wasn...
How to round a number to significant figures in Python
...of significant figures. It will sometimes use 'e' scientific notation, so convert the rounded string back to a float then through %s string formatting.
>>> '%s' % float('%.1g' % 1234)
'1000'
>>> '%s' % float('%.1g' % 0.12)
'0.1'
>>> '%s' % float('%.1g' % 0.012)
'0.01'
&g...
ToList()— does it create a new list?
...ion operations. Extension methods like ToList() and ToArray() allow you to convert the computed sequence into a standard collection.
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What is the best way to get the count/length/size of an iterator?
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Using Guava library, another option is to convert the Iterable to a List.
List list = Lists.newArrayList(some_iterator);
int count = list.size();
Use this if you need also to access the elements of the iterator after getting its size. By using Iterators.size() you...