CODEWITHSUNDEEP
scalaapache-spark
Jiang Xiang
Jiang Xiang

Reputation: 3256

Scala error: '=' expected but ';' found

Not sure what caused this problem: error: '=' expected but ';' found.

val vectors = filtered_data_by_key.map( x => {
    var temp
    x._2.copyToArray(temp)  // Error occurs here
    (x._1, temp)
})

Upvotes: 6

Views: 22709

Answers (2)

pzecevic
pzecevic

Reputation: 2857

If filtered_data_by_key is an RDD of (T, Iterable), or in other words, a result of groupByKey transformation, then this can be written simply like this:

val vectors = filtered_data_by_key.map( { case (x, iter) => (x, iter.toArray) })

Upvotes: 0

George Simms
George Simms

Reputation: 4060

var temp isn't a statement.

If you're trying to declare temp without assigning anything to it, do 

var temp :Array[_] = _

But is temp supposed to be an array? then try var temp = Array(). temp needs something assigned to it before being passed into copyToArray. Also as you're not destructively assigning to temp it doesn't need to be a var.

Upvotes: 8

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