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Scheduling recurring task in Android
...utor. So it's not the best choice
ScheduledThreadPoolExecutor.
You can use java.util.Timer or ScheduledThreadPoolExecutor (preferred) to schedule an action to occur at regular intervals on a background thread.
Here is a sample using the latter:
ScheduledExecutorService scheduler =
Executors.newS...
Difference between solr and lucene
...t something that is ready to use out-of-the-box (even without knowledge of Java) OR
Your infrastructure requirements outweigh search customization requirements.
NOTE:
I don't mean that Solr is hard to customize. Solr is very flexible and provides a lot of pluggable API points, allowing you to th...
Should a retrieval method return 'null' or throw an exception when it can't produce the return value
I am using java language,I have a method that is supposed to return an object if it is found.
36 Answers
...
what is the difference between a portlet and a servlet?
...ts
Similarities
Servlets and Portlets are web based components which use Java for
their implementation.
Portlets are managed by a portlet container just like servlet is
managed by servlet container.
Both static and dynamic content can be generated by Portlets and
Servlets.
The life cycle of por...
Building executable jar with maven?
...d run mvn clean install. Then, cd into the target directory and try again:
java -jar logmanager-0.1.0-jar-with-dependencies.jar
If you get an error, please update your question with it and post the content of the META-INF/MANIFEST.MF file and the relevant part of your pom.xml (the plugins configura...
Sending data back to the Main Activity in Android
...eturn Intent. The data is extracted using a key-value pair.
MainActivity.java
public class MainActivity extends AppCompatActivity {
private static final int SECOND_ACTIVITY_REQUEST_CODE = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedI...
Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript?
22 Answers
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Android - Start service on boot
...me=".service" />
</application>
</manifest>
autostart.java
public class autostart extends BroadcastReceiver
{
public void onReceive(Context context, Intent arg1)
{
Intent intent = new Intent(context,service.class);
if (Build.VERSION.SDK_INT >= Build...
git status shows modifications, git checkout — doesn't remove them
...branch just to commit these changes as they are useless for me anyways. [java]git checkout -b a-branch-to-commit-bad-crlf-files[/java] [java]git commit -am"committing the bad crlf files"[/java]
– Mohd Farid
Dec 8 '15 at 9:56
...
Why are `private val` and `private final val` different?
...
So, this is just a guess, but it was a perennial annoyance in Java that final static variables with a literal on the right-hand side get inlined into bytecode as constants. That engenders a performance benefit sure, but it causes binary compatibility of the definition to break if the "c...