Code:
object Permutations extends App { val ar=Array(1,2,3).combinations(2).foreach(println(_)) } Output:
[I@378fd1ac [I@49097b5d [I@6e2c634b
I am trying to execute this but I am getting some other values.
How to print array values in Scala? Can any one help to print?
Use mkString
object Permutations extends App { Array(1,2,3).combinations(2).foreach(x => println(x.mkString(", "))) } scala> Array(1,2,3).combinations(2).foreach(x => println(x.mkString(", "))) 1, 2 1, 3 2, 3 When array instance is directly used for inside println. The toString method of array gets called and results in output like [I@49097b5d. So, use mkString for converting array instance to string.
scala> println(Array(1, 2)) [I@2aadeb31 scala> Array(1, 2).mkString res12: String = 12 scala> Array(1, 2).mkString(" ") res13: String = 1 2 scala> You can't print array directly, If you will try to print it will print the reference of that array.
You are almost there, Just iterate over array of array and then on individual array and display the elements like below
Array(1,2,3).combinations(2).foreach(_.foreach(println)) Or Just convert each array to string and display like below
Array(1,2,3).combinations(2).foreach(x=>println(x.mkString(" "))) I hope this will help you
