You really should show your Spark code then. I think you are mistaking one of the Spark APIs, and are processing a collection of 1 ArrayBuffer at some point, not an ArrayBuffer.
On Wed, Sep 3, 2014 at 6:42 AM, Deep Pradhan <pradhandeep1...@gmail.com> wrote: > I have a problem here. > When I run the commands that Rajesh has suggested in Scala REPL, they work > fine. But, I want to work in a Spark code, where I need to find the number > of elements in an ArrayBuffer. In Spark code, these things are not working. > How should I do that? > > > On Wed, Sep 3, 2014 at 10:25 AM, Madabhattula Rajesh Kumar > <mrajaf...@gmail.com> wrote: >> >> Hi Deep, >> >> Please find below results of ArrayBuffer in scala REPL >> >> scala> import scala.collection.mutable.ArrayBuffer >> import scala.collection.mutable.ArrayBuffer >> >> scala> val a = ArrayBuffer(5,3,1,4) >> a: scala.collection.mutable.ArrayBuffer[Int] = ArrayBuffer(5, 3, 1, 4) >> >> scala> a.head >> res2: Int = 5 >> >> scala> a.tail >> res3: scala.collection.mutable.ArrayBuffer[Int] = ArrayBuffer(3, 1, 4) >> >> scala> a.length >> res4: Int = 4 >> >> Regards, >> Rajesh >> >> >> On Wed, Sep 3, 2014 at 10:13 AM, Deep Pradhan <pradhandeep1...@gmail.com> >> wrote: >>> >>> Hi, >>> I have the following ArrayBuffer: >>> >>> ArrayBuffer(5,3,1,4) >>> >>> Now, I want to get the number of elements in this ArrayBuffer and also >>> the first element of the ArrayBuffer. I used .length and .size but they are >>> returning 1 instead of 4. >>> I also used .head and .last for getting the first and the last element >>> but they also return the entire ArrayBuffer (ArrayBuffer(5,3,1,4)) >>> What I understand from this is that, the entire ArrayBuffer is stored as >>> one element. >>> >>> How should I go about doing the required things? >>> >>> Thank You >>> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
