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When should one use RxJava Observable and when simple Callback on Android?
...I decided to try out Square's Retrofit . I see that they support simple Callback
9 Answers
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Debugging doesn't start [closed]
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I had the same problem and all the tricks didnt do it until I unchecked the "Enable the Visual Studio hosting process" under the debug tab in the project properties
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Difference between java.lang.RuntimeException and java.lang.Exception
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Generally RuntimeExceptions are exceptions that can be prevented programmatically. E.g NullPointerException, ArrayIndexOutOfBoundException. If you check for null before calling any method, NullPointerException would never occur. ...
Pros and Cons of SQLite and Shared Preferences [closed]
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It really depends on the data you want to store.
SQLite
Large amounts of same structured data should be stored in a SQLite database as databases are designed for this kind of data. As the data is structured and managed by the d...
Check if a program exists from a Makefile
How can I check if a program is callable from a Makefile?
12 Answers
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What is the difference between MVC and MVVM? [closed]
...t.
For ASP.Net, MVVM is used to two-way bind data within views. This is usually a client-side implementation (e.g. using Knockout.js). MVC on the other hand is a way of separating concerns on the server-side.
For Silverlight and WPF, the MVVM pattern is more encompassing and can appear to act as a r...
differentiate null=True, blank=True in django
When we add a database field in django we generally write:
18 Answers
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Can I concatenate multiple MySQL rows into one field?
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My need was to get ALL the data from one column. Don't use the GROUP BY clause to do this. Example : SELECT GROUP_CONCAT(emails SEPARATOR ', ') FROM users;
– Jonathan Bergeron
Jan 17 '14 at 14:04
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How to get Resource Name from Resource id
... wouldn't recommend use it if you use Proguard (minifyEnabled true), especially for getResources().getIdentifier(...
– user25
Jul 14 '18 at 22:54
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What is aspect-oriented programming?
.... People seem to talk about aspect-oriented programming, but I've never really learned what it is or how to use it. What is the basic paradigm?
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