How to add elements into map?

Here is the code I run in spark-shell: val table = sc.textFile(args(1)) val histMap = collection.mutable.Map[Int,Int]() for (x - table) { val tuple = x.split('|') histMap.put(tuple(0).toInt, 1) } Why is histMap still null? Is there something wrong with my code?

Fwd: How to add elements into map?

Here is the code I run in spark-shell: val table = sc.textFile(args(1)) val histMap = collection.mutable.Map[Int,Int]() for (x - table) { val tuple = x.split('|') histMap.put(tuple(0).toInt, 1) } Why is histMap still null? Is there something wrong with my code? Thanks,

Re: How to add elements into map?

It doesn't work that way. Following is the correct way: val table = sc.textFile(args(1)) val histMap = table.map(x = { x.split('|')(0).toInt,1 }) - Lalit Yadav la...@sigmoidanalytics.com -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/How-to-add