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How to debug stream().map(…) with lambda expressions?
...ly the lambda body).
Another approach is to use peek to inspect the elem>me m>nts of the stream:
List<Integer> naturals = Arrays.asList(1,2,3,4,5,6,7,8,9,10,11,12,13);
naturals.stream()
.map(n -> n * 2)
.peek(System.out::println)
.collect(Collectors.toList());
UPDATE:
I think...
Is it good practice to use java.lang.String.intern()?
...ngs by reference (== is faster than equals)
Are there side effects not m>me m>ntioned in the Javadoc?
The primary disadvantage is that you have to rem>me m>mber to make sure that you actually do intern() all of the strings that you're going to compare. It's easy to forget to intern() all strings and the...
Calling startActivity() from outside of an Activity?
... yes this works. but if you want to start multiple instances of the sam>me m> Activity this does not work. Since the FLAG_ACTIVITY_NEW_TASK will resum>me m> the sam>me m> existing Activity
– Ovidiu Latcu
Sep 30 '11 at 13:16
...
What is the difference between class and instance attributes?
Is there any m>me m>aningful distinction between:
5 Answers
5
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EJB's - when to use Remote and/or local interfaces?
I'm very new to Java EE and I'm trying to understand the concept of Local interfaces and Remote interfaces. I've been told that one of the big advantages of Java EE is that it is easy to scale (which I believe m>me m>ans you can deploy different components on different servers). Is that where Remote and ...
val-mutable versus var-immutable in Scala
Are there any guidelines in Scala on when to use val with a mutable collection versus using var with an immutable collection? Or should you really aim for val with an immutable collection?
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How to turn on line numbers in IDLE?
In the main shell of IDLE, errors always return a line number but the developm>me m>nt environm>me m>nt doesn't even have line numbers. Is there anyway to turn on line numbers?
...
Best practices for using Markers in SLF4J/Logback
We are using SLF4J+Logback combination at our project for a while now and are quite happy with it, but our logging strategy is fairly simple, using straightforward class based loggers and no fancy stuff like MDC or Markers.
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Variable declared in for-loop is local variable?
I have been using C# for quite a long tim>me m> but never realised the following:
9 Answers
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What column type/length should I use for storing a Bcrypt hashed password in a Database?
... would be the correct length? Are passwords hashed with BCrypt always of sam>me m> length?
4 Answers
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