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  1. import scala.collection.mutable._
  2.  
  3. object Main extends App {
  4. 	def HashMapOrdering = new Ordering[HashMap[Int,Int]] {
  5.  
  6.   def compare(a : HashMap[Int,Int], b : HashMap[Int,Int]) = b.valuesIterator.next().compare(a.valuesIterator.next())
  7.  
  8. }
  9.  
  10.  
  11.  
  12.   var seeds = PriorityQueue[HashMap[Int, Int]]()(HashMapOrdering)
  13.   seeds.enqueue(HashMap(4 -> 4), HashMap(234 -> 5), HashMap(78 -> 6), HashMap(89 -> 1))
  14.  
  15.  
  16.  
  17.   seeds.find(x => x.get(89) == Some(1)) match {
  18.  
  19.     case Some(hashMap: HashMap[Int, Int]) => hashMap.remove(77); hashMap.put(77,32)
  20.     case None => println("Not found")
  21.  
  22.   }
  23.  
  24.  
  25. }
Success #stdin #stdout 0.43s 322176KB
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https://ideone.com/3cpBNL
language:
Scala (scala 2.12.8)
created:
9 years ago
visibility:
public

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