注意spark的Scala版本和java版本 修改后为官方指定的版本正常运行 Error:scalac: Error: object FloatRef does not have a member create scala.reflect.internal.FatalError 还有这个也可能是版本问题…
Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps; at org.apache.spark.util.Utils$.getCallSite(Utils.scala:1440) at org.apache.spark.SparkContext.<init>…
Immutable.js provides several methods to iterate over an Immutable.Map(). These also apply to the other immutable structures found within the Immutable.js family, such as Set and List. The primary methods are map and forEach, but we will also cover f…
Range Sum Query - Immutable Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Given nums = [-2, 0, 3, -5, 2, -1] sumRange(0, 2) -> 1 sumRange(2, 5) -> -1 sumRange(0, 5) -> -3 Note: You…