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Reading a plain text file in Java
...ethod. You can have a look at the source here:
http://www.docjar.com/html/api/org/apache/commons/io/IOUtils.java.html
FileInputStream inputStream = new FileInputStream("foo.txt");
try {
String everything = IOUtils.toString(inputStream);
} finally {
inputStream.close();
}
And even simpler...
“R cannot be resolved to a variable”? [duplicate]
...ace, it's usually a typo or other problem in an XML layout file. Using a capital letter in your XML filenames will also cause that problem. If R.java does exist but variables in it aren't recognized by just one Java file, for instance, note whether that file is in the same package as R.java--if no...
How to check if activity is in foreground or in visible background?
...
If targeting API level 14 or above, one can use android.app.Application.ActivityLifecycleCallbacks
public class MyApplication extends Application implements ActivityLifecycleCallbacks {
private static boolean isInterestingActivityVi...
Why C# implements methods as non-virtual by default?
...
@mxmissile: me too, but good API design is hard anyway. I think sealed-by-default makes perfect sense for code you own. More often than not, the other programmer on your team did not consider inheritance when they implemented that class you need, and sea...
Perform debounce in React.js
...r more details.
2018: try promise debouncing
We often want to debounce API calls to avoid flooding the backend with useless requests.
In 2018, working with callbacks (Lodash/Underscore) feels bad and error-prone to me. It's easy to encounter boilerplate and concurrency issues due to API calls r...
How to find the JVM version from a program?
...cgi" Undocumented
java.specification.name "Java Platform API Specification" "Java Platform API Specification" "Java Platform API Specification" Java Runtime Environment specification name
java.specification.vendor "Oracle Corporation" ...
Why dict.get(key) instead of dict[key]?
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I will give a practical example in scraping web data using python, a lot of the times you will get keys with no values, in those cases you will get errors if you use dictionary['key'], whereas dictionary.get('key', 'return_otherwise') has no problems.
Similarly,...
Encode String to UTF-8
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@AhmadHajjar docs.oracle.com/javase/10/docs/api/java/lang/… : "The Java platform uses the UTF-16 representation in char arrays and in the String and StringBuffer classes."
– Maxi Gis
Oct 4 '19 at 14:43
...
ActiveModel::ForbiddenAttributesError when creating new user
...is also a permit_params in the model register block:
ActiveAdmin.register Api::V1::Person do
permit_params :name, :address, :etc
end
These need to be set along with those in the controller:
def api_v1_person_params
params.require(:api_v1_person).permit(:name, :address, :etc)
end
Otherwise ...
Android 4.1: How to check notifications are disabled for the application?
...sEnabled(), from support library, to check if notifications are blocked on API 19+. The versions below API 19 will return true (notifications are enabled).
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