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scala vs java, performance and memory? [closed]

I am keen to look into Scala, and have one basic question I cant seem to find an answer to: in general, is there a difference in performance and usage of memory between Scala and Java? ...
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What is the difference between “INNER JOIN” and “OUTER JOIN”?

...ately. An outer join will give the results of A intersect B in addition to one of the following: all of A (left join), all of B (right join) or all of A and all of B (full join). Only this last scenario is really A union B. Still, a well written explanation. – Thomas ...
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How can Perl's print add a newline by default?

... Isn't it safe to assume that unless Perl 6 is specifically mentioned that the question refers to Perl 5? – wobbily_col Nov 22 '17 at 12:18 add a comment ...
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Renaming projects in Xcode 4

...This works great, but I also had to create a new scheme and delete the old one. The old scheme was still trying to target the old app name. – Jim Rhoades Nov 2 '11 at 21:20 20 ...
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How do I tell Maven to use the latest version of a dependency?

... NOTE: This answer applies to Maven 2 only! The mentioned LATEST and RELEASE metaversions have been dropped in Maven 3 "for the sake of reproducible builds", over 6 years ago. Please refer to this Maven 3 compliant solution. If you always want to use the newest version, Mav...
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What is the best way to force yourself to master vi? [closed]

... or navigate or save. And my hands never leave the keyboard. To use Vim is one of the best choices I've made in my programming career. share | improve this answer | follow ...
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How to set timer in android?

Can someone give a simple example of updating a textfield every second or so? 21 Answers ...
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Building big, immutable objects without using constructors having long parameter lists

... and immutable object once created? I think a fluent interface CORRECTLY DONE would help you. It would look like this (purely made up example): final Foo immutable = FooFactory.create() .whereRangeConstraintsAre(100,300) .withColor(Color.BLUE) .withArea(234) .withInterspacing(12) ...
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Immutable class?

How can one make a Java class immutable, what is the need of immutability and is there any advantage to using this? 13 Answ...
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Break or return from Java 8 stream forEach?

... If you need this, you shouldn't use forEach, but one of the other methods available on streams; which one, depends on what your goal is. For example, if the goal of this loop is to find the first element which matches some predicate: Optional<SomeObject> result = ...