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How to read XML using XPath in Java
...umentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.x...
How to extract the decision rules from scikit-learn decision-tree?
...else: # < -- added else to iterate through decision nodes
if (X_test[sample_id, feature[node_id]] <= threshold[node_id]):
threshold_sign = "<="
else:
threshold_sign = ">"
print("decision id node %s : (X[%s, %s] (= %s) %s %s)"
...
Parsing JSON from XmlHttpRequest.responseJSON
...
Note: I've only tested this in Chrome.
it adds a prototype function to the XMLHttpRequest .. XHR2,
in XHR 1 you probably just need to replace this.response with this.responseText
Object.defineProperty(XMLHttpRequest.prototype,'responseJSO...
Is there a way to get rid of accents and convert a whole string to regular letters?
...port for Ł, @KarolS. Someone submitted a pull request, but it failed some tests and hasn't been updated since July of last year.
– DavidS
Feb 3 '16 at 20:21
1
...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...localhost
username: thisismynewusername
password: thisismynewpassword
test:
# this won't work
adapter: postgresql
encoding: unicode
database: my_application_test
pool: 5
username: my_application
password:
production:
# this won't work
adapter: postgresql
encoding: unicode...
When should one use final for method parameters and local variables?
...inal to every class that implement an interface (to be able to create unit tests). Also mark as final all protected/class methods, which are not going to be overridden.
– rmaruszewski
Oct 1 '08 at 10:13
...
How does a Java HashMap handle different objects with the same hash code?
... hashmap immediately knows in which bucket to look, so that it only has to test against what's in that bucket.
Looking at the above mechanism, you can also see what requirements are necessary on the hashCode() and equals() methods of keys:
If two keys are the same (equals() returns true when you ...
What is the most efficient Java Collections library? [closed]
...on't think anyone reading this should listen to either of us. They should test their own use case and see what has the best performance. My comments are based on my team's fairly aggressive performance tests with a variety of libraries. YMMV.
– Alex Miller
How do I delete an exported environment variable?
...
Walkthrough of creating and deleting an environment variable in bash:
Test if the DUALCASE variable exists:
el@apollo:~$ env | grep DUALCASE
el@apollo:~$
It does not, so create the variable and export it:
el@apollo:~$ DUALCASE=1
el@apollo:~$ export DUALCASE
Check if it is there:
el@apol...
Give all the permissions to a user on a DB
...son it doesn't seem to do anything. For exampe, I ran: grant ALL on schema test to userA; but after that userA still doesnt have access to read from the tables on schema test
– Diego
Mar 21 '14 at 9:32
...