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How to convert a color integer to a hex String in Android?
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Try Integer.toHexString()
Source:
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros?
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How can I find the current OS in Python? [duplicate]
As the title says, how can I find the current operating system in python?
5 Answers
5
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“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
... provided by Serhiy Storchaka. It works very well so I paste it here:
def convert(o):
if isinstance(o, numpy.int64): return int(o)
raise TypeError
json.dumps({'value': numpy.int64(42)}, default=convert)
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How to convert strings into integers in Python?
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int() is the Python standard built-in function to convert a string into an integer value. You call it with a string containing a number as the argument, and it returns the number converted to an integer:
print (int("1") + 1)
The above prints 2.
If you know the structure ...
Removing all non-numeric characters from string in Python
...n(c for c in x if (c.isdigit() or c =='.'))
123.45
You can change the point for a comma depending on your needs.
change for this if you know your number is an integer
x='$1123'
int(''.join(c for c in x if c.isdigit())
1123
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Converting Integer to Long
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No, you can't cast Integer to Long, even though you can convert from int to long. For an individual value which is known to be a number and you want to get the long value, you could use:
Number tmp = getValueByReflection(inv.var1(), classUnderTest, runtimeInstance);
Long value1 =...
Can anyone explain python's relative imports?
...ant to import from a top level module you have to explicitly add it to the sys.path list.
Here is how it should work:
# Add this line to the beginning of relative.py file
import sys
sys.path.append('..')
# Now you can do imports from one directory top cause it is in the sys.path
import parent
#...
How do I execute a string containing Python code in Python?
... the example a string is executed as code using the exec function.
import sys
import StringIO
# create file-like string to capture output
codeOut = StringIO.StringIO()
codeErr = StringIO.StringIO()
code = """
def f(x):
x = x + 1
return x
print 'This is my output.'
"""
# capture output a...
Is an array name a pointer?
... is an array and a pointer is a pointer, but in most cases array names are converted to pointers. A term often used is that they decay to pointers.
Here is an array:
int a[7];
a contains space for seven integers, and you can put a value in one of them with an assignment, like this:
a[3] = 9;
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Convert List into Comma-Separated String
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In .NET 3.5 and below you have to explicitly convert your list to array with lst.ToArray(), as there is no direct overload there yet.
– Anton
Dec 15 '13 at 11:09
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