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How does “this” keyword work within a function?
...iteral notation. Inside those objects, the this pointer is being used. From the behavior of the program, I have deduced that the this pointer is referring to the class on which the method was invoked, and not the object being created by the literal.
...
How to write the Fibonacci Sequence?
...ne is pretty easy to implement and very, very fast to compute, in Python:
from math import sqrt
def F(n):
return ((1+sqrt(5))**n-(1-sqrt(5))**n)/(2**n*sqrt(5))
An other way to do it is following the definition (from wikipedia):
The first number of the sequence is 0,
the second number is...
How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
In the custom AuthenticationProvider from my spring project, I am trying read the list of authorities of the logged user, but I am facing the following error:
...
How can I find the latitude and longitude from address?
...
public GeoPoint getLocationFromAddress(String strAddress){
Geocoder coder = new Geocoder(this);
List<Address> address;
GeoPoint p1 = null;
try {
address = coder.getFromLocationName(strAddress,5);
if (address==null) {
return null;...
What is the behavior of integer division?
... the operands.
and:
5 The result of the / operator is the
quotient from the division of the
first operand by the second; the
result of the % operator is the
remainder. In both operations, if the
value of the second operand is zero,
the behavior is undefined.
[Note: Emphasis mine]...
How do I write a for loop in bash
...
From this site:
for i in $(seq 1 10);
do
echo $i
done
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How to Implement DOM Data Binding in JavaScript
...Very clean approach, very simply put and simple enough for people to learn from, a lot cleaner than what I had. A common use case is using templates in code to represent objects' views. I was wondering how this might work here? In engines like Mustache I do something Mustache.render(template,object)...
How do I generate a stream from a string?
I need to write a unit test for a method that takes a stream which comes from a text file. I would like to do do something like this:
...
How to store date/time and timestamps in UTC time zone with JPA and Hibernate
...Statement.setTimestamp both say in their docs that they transform dates to/from the current JVM timezone by default when reading and writing from/to the database.
I came up with a solution to this in Hibernate 3.5 by subclassing org.hibernate.type.TimestampType that forces these JDBC methods to use...
How does a debugger work?
...ill enter an event loop much like for any UI, but instead of events coming from the windowing system, the OS will generate events based on what happens in the process being debugged – for example an exception occurring. See WaitForDebugEvent.
The debugger is able to read and write the target proc...