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How to calculate the running time of my program? [duplicate]
...s in the main method, calendar will be defined two times -> compilation error
– krtek
Mar 5 '11 at 13:35
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Can Visual Studio 2012 be installed side-by-side w/ Visual Studio 2010?
... previously working 4.0 code starts bombing out with an "Object Reference" error on a line that only contains a comment.
– mclark1129
Apr 24 '12 at 12:31
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What is the difference between atomic / volatile / synchronized?
...ame time.
Using volatile variables reduces the risk of memory consistency errors, because any write to a volatile variable establishes a happens-before relationship with subsequent reads of that same variable.
This means that changes to a volatile variable are always visible to other threads. Wha...
Set margins in a LinearLayout programmatically
...ckage android.widget.RelativeLayout.LayoutParams, or else there will be an error.
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How to upload a file in Django? [closed]
...a">
{% csrf_token %}
<p>{{ form.non_field_errors }}</p>
<p>{{ form.docfile.label_tag }} {{ form.docfile.help_text }}</p>
<p>
{{ form.docfile.errors }}
{{ form.docfile }}
</...
Determine if running on a rooted device
...han having this feature fail when it is used (and then show an appropriate error message to the user), I'd prefer an ability to silently check if root is available first, and if not,hide the respective options in the first place.
...
Python 2.7 getting user input and manipulating as string without quotations
...ter a number: ")) #integer input
If you enter a string for int cast ValueError: invalid literal for int() with base 10:
x = float(input("Enter a float number: ")) #float input
If you enter a string for float cast ValueError: could not convert string to float
x = eval(input("Enter a float numbe...
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...
Can't find the PostgreSQL client library (libpq)
...nstall pg
But when I tried running bundle install again, it had the same error. Then I tried the entire bundle install with ARCHFLAGS like so:
ARCHFLAGS="-arch x86_64" bundle install
Worked for me! Make sure to replace x86_64 with i386 depending on what architecture you have.
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How many characters can a Java String have?
...];
System.out.println("len: " + len + " OK");
} catch (Error e) {
System.out.println("len: " + len + " " + e);
}
}
}
on Oracle Java 8 update 92 prints
len: 2147483647 java.lang.OutOfMemoryError: Requested array size exceeds VM limit
len: 2147483646 java...