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How to loop through an array containing objects and access their properties
...h the objects contained in an array and change the properties of each one. If I do this:
15 Answers
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Negative weights using Dijkstra's Algorithm
... thus fails to accurately compute distances in some cases. Moreover, even if you were to store back pointers saying how to get from each node to the start node A, you'd end taking the wrong path back from C to A.
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Difference between & and && in Java? [duplicate]
I was just wondering what the difference between & and && is?
A few days I wrote a condition for an if statement the looked something like:
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ASP.Net: Literal vs Label
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Yep, the main difference is that Literal controls just render out text, but Label controls surround it with <span> tags (Unless you use the AssociatedControlID property, in which case a Label control will render a <label> tag).
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Hibernate lazy-load application design
...ersistence is a myth, since application always should take care of entity lifecycle and of size of object graph being loaded.
Note that Hibernate can't read thoughts, therefore if you know that you need a particular set of dependencies for a particular operation, you need to express your intentions...
Jackson how to transform JsonNode to ArrayNode without casting?
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Yes, the Jackson manual parser design is quite different from other libraries. In particular, you will notice that JsonNode has most of the functions that you would typically associate with array nodes from other API's. As such, you do not need to cast to an ArrayNode to u...
What's the difference between the build and create methods in FactoryGirl?
The Factory Girl introduction delineates the difference between FactoryGirl.build() and FactoryGirl.create() :
3 Answer...
How do I find all of the symlinks in a directory tree?
...tory and list only the symbolic links:
ls -lR /path/to/folder | grep ^l
If your intention is to follow the symbolic links too, you should use your find command but you should include the -L option; in fact the find man page says:
-L Follow symbolic links. When find examines or prints inf...
Safely casting long to int in Java
What's the most idiomatic way in Java to verify that a cast from long to int does not lose any information?
10 Answers
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How to determine the screen width in terms of dp or dip at runtime in Android?
...the layout of the android widgets using dip/dp (in java files). At runtime if I code,
int pixel=this.getWindowManager().getDefaultDisplay().getWidth() ;
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