scala vs java, performance and memory? - Stack Overflow
2011年5月5日 · Speed test java/scala 1.71/2.25. Memory test java/scala 66.55/80.81. So, this benchmarks say that java is 24% faster and scala uses 21% more memory. All-in-all it's no big deal and should not matter in real world apps, where most …
How well does Scala perform compared to Java? [closed]
2016年10月6日 · Scala is compiled down to byte code and is statically typed so many of the same optimizations that can be done for statically typed languages like Java (as opposed to dynamically typed languages like Groovy) can be done. So comparing Groovy to Scala is comparing apples to oranges. Now, Java to Scala comparison:
Difference between == and === in Scala, Spark - Stack Overflow
2018年12月22日 · I am from a Java background and new to Scala. I am using Scala and Spark. But I'm not able to understand where I use ==and ===. Could anyone let me know in which scenario I need to use these two operators, and what's are difference between == and ===?
PySpark vs Scala Spark vs Spark SQL - Stack Overflow
2022年6月18日 · So, Spark uses JVM for running the transformations which means Scala and Java are first class citizens in Spark environment. They usually have a higher efficiency. PySpark is accomplished by running a python process which communicates with JVM and that makes it have a little bit of overhead.
scala vs java for Spark? - Stack Overflow
The reason folks use Scala over Java is because Spark was created in Scala, and when Spark was an incubator project at Apache, as new APIs were exposed, the Scala API's came first, and then they were ported to Python/Java. The question on why it …
Samples of Scala and Java code where Scala code looks …
2010年6月2日 · The above Scala class contains all features of the below Java class, and some more - for example it supports pattern matching (which Java doesn't have). Scala 2.8 adds named and default arguments, which are used to generate a copy method for case classes, which gives the same ability as the with* methods of the following Java class.
algorithm - Scala vs. Java performance - Stack Overflow
2013年9月23日 · Scala vs. Java performance. Ask Question Asked 11 years, 1 month ago. Modified 11 years, 1 month ago ...
What are the differences between a Scala Future and a Java Future ...
2015年7月12日 · Scala's Future often eliminate, the need to reason about shared data and locks.When you invoke a Scala method, it performs a computation "while you wait" and returns a result. If that result is a Future, the Future represents another computation to be performed asynchronously often by a completely different thread.
Scala class file vs Java class file - Stack Overflow
Does scala have something like 'lein uber'? I mean, does scala have some tools that generates one jar file for distribution purposes? IntelliJ + scala plugin. I could get a jar that contains everything to run scala file file with IntelliJ + scala plugin, I think this is the better option than proguard. proguard setup. Thanks to Moritz, I could ...
Scala vs. Java Regex matching: Big performance difference: Why?
2015年3月10日 · Request someone to please explain this Scala/Java differential - Using Scala Pattern Matching.