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Running Selenium WebDriver python bindings in chrome
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For Linux
Check you have installed latest version of chrome brwoser-> chromium-browser -version
If not, install latest version of chrome sudo apt-get install chromium-browser
get appropriate version of chrome driver from here
Unzip the chromedriver.zi...
Who is calling the Java Thread interrupt() method if I'm not?
...what it is doing. Any thread (including the thread itself I think) could call interrupt() on a Thread.
In practice, the normal use-cases for interrupt() involve some kind of framework or manager telling some worker thread to stop what they are doing. If the worker thread is "interrupt aware" it w...
What's the difference between an object initializer and a constructor?
...re parameters, and are used to create and initialize an object before the calling method gets the handle to the created object. For example:
MyObject myObjectInstance = new MyObject(param1, param2);
In this case, the constructor of MyObject will be run with the values param1 and param2. These ar...
Can I set enum start value in Java?
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Java enums are not like C or C++ enums, which are really just labels for integers.
Java enums are implemented more like classes - and they can even have multiple attributes.
public enum Ids {
OPEN(100), CLOSE(200);
private final int id;
Ids(int id) { this.id = i...
Java dynamic array sizes?
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No you can't change the size of an array once created. You either have to allocate it bigger than you think you'll need or accept the overhead of having to reallocate it needs to grow in size. When it does you'll have to allocate a new one and copy the data from the old to the new:
int[] oldItems ...
Get GPS location from the web browser
...egrated Google Maps, I need to fill the 'From' field of Google Maps dynamically.
6 Answers
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Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
...s not seem to take advantage of this basic optimization method (you might call this common subquery elimination).
Temporary tables are a different matter, because you are providing more guidance on how the query should be run. One major difference is that the optimizer can use statistics from the ...
Bytes of a string in Java
...re interested in for your case, as the argument to getBytes(). And don't fall into the trap of assuming that UTF-8 represents every character as a single byte, as that's not true either:
final String interesting = "\uF93D\uF936\uF949\uF942"; // Chinese ideograms
// Check length, in characters
Sys...
Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
...at time is measured by the clock? (real, user, system, or, hopefully not, wall-clock?)
What is the precision of the clock? (s, ms, µs, or faster?)
After how much time does the clock wrap around? Or is there some mechanism to avoid this?
Is the clock monotonic, or will it change with changes in the ...
An item with the same key has already been added
...this error whenever I submit the form also the action method is not being called because of this:
21 Answers
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