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Functional style of Java 8's Optional.ifPresent and if-not-Present?
... see your point. I do think he could make it work if he didn't return null from the map, but it is a bit strange to ask for a functional solution so you can call a DAO. Seems to me it would make more sense to return the updated/new object from this map.orElse block and then do what you need to do wi...
How to get different colored lines for different plots in a single figure?
.... That said, excellent answer to an important question (possibly different from what OP asked, but no one can tell because they asked this single question and disappeared!) — +1
– gboffi
Aug 5 '19 at 8:58
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Convert seconds to HH-MM-SS with JavaScript?
...to your project for the same effect that about 53 bytes will give you. . . From below: new Date(SECONDS * 1000).toISOString().substr(11, 8);
– ashleedawg
May 16 at 2:11
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How to increase request timeout in IIS?
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Can this be set from the IIS 7 Manager GUI?
– Triynko
Oct 9 '12 at 8:19
14
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Is it possible to use the instanceof operator in a switch statement?
... Library - formerly Javaslang library provides one implementation. Example from the docs:
Match.ofType(Number.class)
.caze((Integer i) -> i)
.caze((String s) -> new BigDecimal(s))
.orElse(() -> -1)
.apply(1.0d); // result: -1
It's not the most natural paradigm in the Java w...
How to determine if a type implements a specific generic interface type
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By using the answer from TcKs it can also be done with the following LINQ query:
bool isBar = foo.GetType().GetInterfaces().Any(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IBar<>));
...
How to change maven logging level to display only warning and errors?
I want to prevent maven from displaying INFO messages, I want to see only WARNINGS and ERRORS (if any).
10 Answers
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Functions that return a function
...();, but instead of assigning the return value of b() you are returning it from the calling function a(). If the function b() itself does not return a value, the call returns undefined after whatever other work is done by b().
// Execute function b() and return its value
return b();
// If b() has ...
List passed by ref - help me explain this behaviour
...cing those integers.
Read the Passing Reference-Type Parameters section from this MSDN article on "Passing Parameters" for more information.
"How do I Clone a Generic List in C#" from StackOverflow talks about how to make a deep copy of a List.
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How to Sort Multi-dimensional Array by Value?
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I always get this wrong. Let me think from the manual: the return value must be less than zero if the first argument is considered less than the second. So if $a['order'] is 3, and $b['order'] is 6, I will return -3. Correct?
– Jan Fabry
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