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How to check programmatically if an application is installed or not in Android?
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Somewhat cleaner solution than the accepted answer (based on this question):
public static boolean isAppInstalled(Context context, String packageName) {
try {
context.getPackageManager().getApplicationInfo(packageName, 0);
return true;
}
catch (Pac...
How to have an automatic timestamp in SQLite?
I have an SQLite database, version 3 and I am using C# to create an application that uses this database.
7 Answers
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When exactly is it leak safe to use (anonymous) inner classes?
...Inner Classes
Garbage Collection is automatic but tries to remove objects based on whether it thinks they are being used. The Garbage Collector is pretty smart, but not flawless. It can only determine if something is being used by whether or not there is an active reference to the object.
The rea...
How to asynchronously call a method in Java
... CompletableFuture, this way you can perform additional async computations based on the result from calling an async function.
for example:
CompletableFuture.supplyAsync(this::findSomeData)
.thenApply(this:: intReturningMethod)
.thenAccept(this::notify);
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Daylight saving time and time zone best practices [closed]
...e higher precision, use milliseconds instead. This value should always be based on UTC, without any time zone adjustment.
If you might later need to modify the timestamp, include the original time zone ID so you can determine if the offset may have changed from the original value recorded.
When sch...
How to change credentials for SVN repository in Eclipse?
...y, you have to manually delete the cache. The location of the cache varies based on the client adapter used.
JavaHL caches the information in the same location as the command line client -- in the Subversion runtime configuration area. On Windows this is located in %APPDATA%\Subversion\auth. On Linu...
How to list npm user-installed packages?
...ccepted answer 100% correct, and useful, wished to expand upon it a little based on my own experiences, and hopefully for the benefit of others too. (Here I am using the terms package and module interchangeably)
In answer to the question, yes the accepted answer would be:
npm list -g --depth=0
Y...
Mercurial - all files that changed in a changeset?
...ile. Also, it doesn't properly deal with spaces in filenames. A --template-based solution without these shortcomings could be constructed using join() as suggested by @Foxichu.
– Michał Wróbel
Jan 26 '18 at 16:59
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Uncaught SyntaxError: Unexpected token with JSON.parse
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Got a trailing special character after Base64 decoding, your method helped me a lot! Thx
– Guillaume
Jul 9 '16 at 23:24
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Why don't they teach these things in school? [closed]
...ut the techniques that software developers should learn, this agreement is based on personal experience and informal reasoning. In order to be a socially accepted "best practice", we need quantitative data which can be very expensive to gather: how much does version control help? How does it help?...