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Count occurrences of a char in plain text file
...<file> | wc -l
Note: Besides much easier to remember/duplicate and customize, this is about three times (sorry, edit! botched the first test) faster than Vereb's answer.
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Accessing Object Memory Address
... @Artyer: My example shows how to construct a repr. We often add custom information (and I would say this is good coding practice as it aids in debugging). We use this style heavily and I have never run in to your edge cases. Thanks for sharing them!
– Rafe
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Windows threading: _beginthread vs _beginthreadex vs CreateThread C++
... no C-runtime calls. Even STL usage is limited in that you have to provide custom allocators to use WIN32 memory management functions. The setup to do this with Developer Studio is a job in itself, but for an only-ever-WIN32 lib with the smallest possible footprint, it can be done. But yeah, it ain'...
Add a background image to shape in XML Android
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Here is another most easy way to get a custom shape for your image (Image View). It may be helpful for someone. It's just a single line code.
First you need to add a dependency:
dependencies {
compile 'com.mafstech.libs:mafs-image-shape:1.0.4'
}
And the...
Why do we need entity objects? [closed]
...fact of the application. I want my application to be thinking in terms of Customers, Orders and Items, not a technology like DataSets, DataTables and DataRows...cuz who knows how long those will be around.
I agree that there is always a certain amount of coupling, but I prefer that coupling to r...
Why can't I use switch statement on a String?
...plete example based on JeeBee's post, using java enum's instead of using a custom method.
Note that in Java SE 7 and later you can use a String object in the switch statement's expression instead.
public class Main {
/**
* @param args the command line arguments
*/
public static vo...
Android Shared preferences for creating one time activity (example) [closed]
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You can create your custom SharedPreference class
public class YourPreference {
private static YourPreference yourPreference;
private SharedPreferences sharedPreferences;
public static YourPreference getInstance(Context context)...
How do I draw a grid onto a plot in Python?
...tter(x, y)
plt.grid(True)
plt.show()
In addition, you might want to customize the styling (e.g. solid line instead of dashed line), add:
plt.rc('grid', linestyle="-", color='black')
For example:
import matplotlib.pyplot as plt
points = [
(0, 10),
(10, 20),
(20, 40),
(60, ...
Is it possible to force ignore the :hover pseudoclass for iPhone/iPad users?
...class:
.no-touch a:hover { /* hover styles here */ }
You can download a custom Modernizr build to include as few or as many feature detections as you need.
Here's an example of some classes that may be applied:
<html class="js no-touch postmessage history multiplebgs
boxshadow ...
Return 0 if field is null in MySQL
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This happens once a week to bill all customers. Data is written all week, then at a certain time, its computed and billed. Think of it like a subscription service. You can make changes during the tenure of the billing period, and your activity is charged at appr...