Question

How to find the min and max of an int array in Scala

Answer 1

val array = Array(3, 14, 4, 1, 5, 90, 2, 6, 89, 7)

val minValue = array.min
val maxValue = array.max

println(s"Minimum: $minValue")
println(s"Maximum: $maxValue")

  
  
/*
run:
    
Minimum: 1
Maximum: 90

*/

 

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Answer 2

val array = Array(3, 14, 4, 1, 5, 90, 2, 6, 89, 7)

val minValue = array.reduceLeft(_ min _)
val maxValue = array.reduceLeft(_ max _)

println(s"Minimum: $minValue")
println(s"Maximum: $maxValue")

  
  
/*
run:
    
Minimum: 1
Maximum: 90

*/

 

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Answer 3

val array = Array(3, 14, 4, 1, 5, 90, 2, 6, 89, 7)

val (minValue, maxValue) = array.foldLeft((Int.MaxValue, Int.MinValue)) {
  case ((min, max), elem) => (min min elem, max max elem)
}

println(s"Minimum: $minValue")
println(s"Maximum: $maxValue")

  
  
/*
run:
    
Minimum: 1
Maximum: 90

*/

 

70+ SQL courses for beginners and professionals