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Download a file with Android, and showing the progress in a ProgressDialog
... update a progress bar).
Imports:
import android.os.PowerManager;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.FileOutputStream;
import java.net.HttpURLConnection;
This is an example code:
// declare the dialog as a member field of your activity
ProgressDialog mProgre...
How to Define Callbacks in Android?
...ement callback method using interface.
Define the interface, NewInterface.java.
package javaapplication1;
public interface NewInterface {
void callback();
}
Create a new class, NewClass.java. It will call the callback method in main class.
package javaapplication1;
public class NewClass {...
What are namespaces?
...echniques like namespaces in other programming languages (like packages in Java). They are used to be able to have mutliple classes with the same name wihtin a project.
From the php documentation (http://www.php.net/manual/en/language.namespaces.rationale.php):
What are namespaces? In the broad...
When to use which design pattern? [closed]
...tructure and checklist beautifully in multiple languages including C++ and Java
wikipedia : Explains structure, UML diagram and working examples in multiple languages including C# and Java .
Check list and Rules of thumb in each sourcemakding design-pattern provides alram bell you are looking for...
Setting a timeout for socket operations
... OP claims he is getting (although I don't believe it). Note also that the Javadoc is incorrect in stating that the default is infinity. It isn't. The platform has a default timeout of around a minute, and this cannot be increased.
– Marquis of Lorne
May 19 '13...
How to negate the whole regex?
...rison
See also
How do I convert CamelCase into human-readable names in Java?
Regex for all strings not containing a string?
A regex to match a substring that isn’t followed by a certain other substring.
More examples
These are attempts to come up with regex solutions to toy problems as exer...
Why is my Spring @Autowired field null?
... order.
The IoC container isn't magic, and it has no way of knowing about Java objects unless you somehow inform it of them. When you call new, the JVM instantiates a copy of the new object and hands it straight to you--it never goes through the configuration process. There are three ways that you ...
Using std Namespace
...r various languages that make significant use of namespaces. For example, Java and C# use namespaces to a large extent (arguably moreso than C++). The most common way names within namespaces are used in those languages is by bringing them into the current scope en masse with the equivalent of a usi...
Ternary Operator Similar To ?:
...be preferable. Perhaps you’d like to write it using the
same syntax as Java. Sadly, you can’t. This is because : is not a
valid identifier. Fear not, | is! Would you settle for this?
c ? p | q
Then you’ll need the following code. Notice the call-by-name (=>)
annotations on the ...
Use of def, val, and var in scala
...
@pferrel not really confusing. Same as with Java's final. You can mark a List as final, but could modify its contents.
– jFrenetic
Jan 7 '17 at 0:40
...