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Should I always use a parallel stream when possible?
...ctions as streams, and just as easy to use a parallel stream. Two examples from the docs , the second one using parallelStream:
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Can anyone explain IEnumerable and IEnumerator to me? [closed]
...erable. If you're building your own class, and it doesn't already inherit from a class that implements IEnumerable, you can make your class usable in foreach statements by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).
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What does DIM stand for in Visual Basic and BASIC?
...(The original implementation of BASIC was Dartmouth BASIC, which descended from FORTRAN, where DIMENSION is spelled out.)
Nowadays, Dim is used to define any variable, not just arrays, so its meaning is not intuitive anymore.
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Understanding offsetWidth, clientWidth, scrollWidth and -Height, respectively
...arly when it comes to scrolling content. While the browser uses the values from your CSS to draw boxes, determining all the dimensions using JS is not straight-forward if you only have the CSS.
That's why each element has six DOM properties for your convenience: offsetWidth, offsetHeight, clientWid...
How to retrieve form values from HTTPPOST, dictionary or?
... @DarinDimitrov makes sense. Different than the world I come from. Very nice feature.
– Goose
Jan 13 '17 at 0:47
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Mutable vs immutable objects
...utable objects gets a lot of bad press (e.g. returning an array of strings from a method) but I'm having trouble understanding what the negative impacts are of this. What are the best practices around using mutable objects? Should you avoid them whenever possible?
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What is the difference between persist() and merge() in JPA and Hibernate?
...peration is
cascaded to entities referenced by X,
if the relationships from X to these
other entities are annotated with the
cascade=PERSIST or cascade=ALL
annotation element value or specified
with the equivalent XML descriptor
element.
If X is a removed entity,
it becomes managed...
How do I make HttpURLConnection use a proxy?
...
This is fairly easy to answer from the internet. Set system properties http.proxyHost and http.proxyPort. You can do this with System.setProperty(), or from the command line with the -D syntax.
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Is iterating ConcurrentHashMap values thread safe?
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What does it mean?
That means that each iterator you obtain from a ConcurrentHashMap is designed to be used by a single thread and should not be passed around. This includes the syntactic sugar that the for-each loop provides.
What happens if I try to iterate the map with two thre...
Difference between JSP EL, JSF EL and Unified EL [closed]
...ll Javabean get methods.
Nov 2003: JSP 2.0 was introduced and EL was moved from JSTL 1.0 to JSP 2.0 in javax.servlet.jsp.el package and it became standard EL as part of J2EE 1.4 standard. JSTL 1.1 was shipped without EL. Now ${} works outside JSTL tags in JSP template text as well.
Mar 2004: JSF 1.0...