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What does the caret operator (^) in Python do?
...e, the __r*__ version of these (like __rxor__ or __radd__) will be invoked from the argument appearing on the right hand side of the infix symbol, and only if the call to the function for the left hand symbol doesn't work. You can think of it like try: left_hand_symbol.__xor__(right_hand_symbol); ex...
Spring .properties file: get element as an Array
I'm loading properties attributes from a .properties file using Spring as follows:
5 Answers
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Hibernate - A collection with cascade=”all-delete-orphan” was no longer referenced by the owning ent
...y is detached and again if we update it.
But if the entity is not detached from per context, (i.e. find and update operations are in the same transaction) the below method works.
public void setChildren(Set<SonEntity> aSet) {
//this.sonEntities = aSet; //This will override the set that Hi...
What's the advantage of a Java enum versus a class with public static final fields?
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Anyway, You didn't mentioned any benefits from enums vs static fields, You can use enough types in switch statements with static fields. Op Need real functionals or perfomance differences
– Genaut
Jul 8 '17 at 23:08
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How to change the cursor into a hand when a user hovers over a list item?
...@EdwardBlack cursor: hand is deprecated and not in the css spec. it's like from ie5-6 era. use only pointer.
– northamerican
May 5 '16 at 20:39
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no gravity for scrollview. how to make content inside scrollview as center
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For @Patrick_Boss - what stopped the content from cutting of in my application was to change the gravity and layout_gravity to center_horizontal for the LinearLayout.
It worked for me...but not sure if it will work for you.
Modification of @Ghost's answer -
<?xml ...
How do I get the user agent with Flask?
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from flask import request
request.headers.get('User-Agent')
You can also use the request.user_agent object which contains the following attributes which are created based on the useragent string:
platform (windows, linux,...
Test if a command outputs an empty string
... 0m0.004s
user 0m0.000s
sys 0m0.007s
Full example
Updated example from the answer by Will Vousden:
if [[ $(ls -A | wc -c) -ne 0 ]]; then
echo "there are files"
else
echo "no files found"
fi
Updated again after suggestions by netj:
if [[ $(ls -A | head -c1 | wc -c) -ne 0 ]]; then...
Which maven dependencies to include for spring 3.0?
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There was a really nice post on the Spring Blog from Keith Donald detailing howto Obtain Spring 3 Aritfacts with Maven, with comments detailing when you'd need each of the dependencies...
<!-- Shared version number properties -->
<properties>
<org.sprin...
Merging objects (associative arrays)
...ver. As it is, this could will copy all properties including those derived from Object.prototype
– bucabay
Sep 20 '09 at 18:54
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