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Why does Eclipse complain about @Override on interface methods?
...
Project specific settings may be enabled. Select your project Project > Properties > Java Compiler, uncheck the Enable project specific settings or change Jdk 1.6 and above not forgetting the corresponding JRE.
Incase it does not work, remove your project from...
java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist
...d a similar problem, here's my solution:
Right click on your project and select Properties.
Select Java Build Path from the menu on the left.
Select the Order and Export tab.
From the list make sure the libraries or external jars you added to your project are checked.
Finally, clean your project &...
Data structure: insert, remove, contains, get random element, all at O(1)
...o other solutions).
The requirement that's tricky is the "random element" selection: in a hash table, you would need to scan or probe for such an element.
For closed hashing / open addressing, the chance of any given bucket being occupied is size() / capacity(), but crucially this is typically kep...
Maven: Failed to read artifact descriptor
...
Had the same issue with IntelliJ IDEA and following worked.
Go to File
Select Settings
Select Build, Execution, Deployments
Select Build Tools from drop down
Select Maven from drop down
Tick the Always update snapshots check box
...
For-each over an array in JavaScript
...tly (ES2015+)
See #4.
Create a true array
Other times, you may want to convert an array-like object into a true array. Doing that is surprisingly easy:
Use the slice method of arrays
We can use the slice method of arrays, which like the other methods mentioned above is "intentionally generic"...
How to find list of possible words from a letter matrix [Boggle Solver]
...();
}
$chars = "[^$chars]";
return qr/$chars/i;
}
# convert a plain cell ( ie: [x][y] = 0 )
# to an intelligent cell ie: [x][y] = object( x, y )
# we only really keep them in this format temporarily
# so we can go through and tie in neighbouring information.
# after th...
How to use if-else option in JSTL
...prefix="c" uri="http://www.springframework.org/tags/form"%>
and
<c:select>
<option value="RCV"
${records[0].getDirection() == 'RCV' ? 'selected="true"' : ''}>
<spring:message code="dropdown.Incoming" text="dropdown.Incoming" />
...
How to delete a module in Android Studio
...ed via "File -> Project Structure" or by right-clicking on a Module and selecting "Module Settings".
Then select the module, and click the "minus" button to remove it.
The directory will still be visible in the "Project" view (though not in the "Android" view) since it's not actually delete...
How do I check/uncheck all checkboxes with a button using jQuery?
...ecking/unchecking the parent checkbox all the child checkboxes are getting selected/deselected also with the text of parent checkbox getting changed to checkall/uncheckall.
...
How can I make the Android emulator show the soft keyboard?
... time I try to do it, it resets itself! I click New... Hardware property, select Keyboard Support, change the value to 'no', click edit/create, but when I edit it again or get info: Hardware Keyboard = yes! Ha! I can't express how sublime I find the Android emulator.
– blahd...