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Can we omit parentheses when creating an object using the “new” operator?
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edited Jun 20 at 9:12
Community♦
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answered Jun 14 '10 at 4:27
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How to check if a String contains only ASCII?
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From Guava 19.0 onward, you may use:
boolean isAscii = CharMatcher.ascii().matchesAllOf(someString);
This uses the matchesAllOf(someString) method which relies on the factory method ascii() rather than the now deprecated ASCII singleton...
matplotlib does not show my drawings although I call pyplot.show()
...b_fname()
In [1]: import matplotlib.pyplot as p
In [2]: p.plot(range(20),range(20))
Out[2]: [<matplotlib.lines.Line2D object at 0xa64932c>]
In [3]: p.show()
If you edit ~/.matplotlib/matplotlibrc and change the backend to something like GtkAgg, you should see a plot. You can list all...
How to change the background color of the options menu?
..._background</item>
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</style>
Tested from API 4.2 to 5.0.
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How to limit the maximum value of a numeric field in a Django model?
... way to restrict it to storing only numbers within a certain range, e.g. 0.0-5.0 ?
6 Answers
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Programmatically align a toolbar on top of the iPhone keyboard
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answered Jul 23 '10 at 18:15
tonklontonklon
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Django MEDIA_URL and MEDIA_ROOT
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UPDATE for Django >= 1.7
Per Django 2.1 documentation: Serving files uploaded by a user dur...
How to implement a ViewPager with different Fragments / Layouts
...ic Fragment getItem(int pos) {
switch(pos) {
case 0: return FirstFragment.newInstance("FirstFragment, Instance 1");
case 1: return SecondFragment.newInstance("SecondFragment, Instance 1");
case 2: return ThirdFragment.newInstance("ThirdFragment, Insta...
How can I get the list of files in a directory using C or C++?
...atibility layer is Toni Ronkko. In Unix, it is a standard header.
UPDATE 2017:
In C++17 there is now an official way to list files of your file system: std::filesystem. There is an excellent answer from Shreevardhan below with this source code:
#include <string>
#include <iostream>
#i...
How to use the C socket API in C++ on z/OS
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Keep a copy of the IBM manuals handy:
z/OS V1R11.0 XL C/C++ Programming Guide
z/OS V1R11.0 XL C/C++ Run-Time Library Reference
The IBM publications are generally very good, but you need to get used to their format, as well as knowing where to look for an answer. You...