In Scala, we can concatenate two arrays using the ++ operator. Here's an example:
val array1 = Array(1, 2, 3)
val array2 = Array(4, 5, 6)
val concatenatedArray = array1 ++ array2
println(concatenatedArray.mkString(", ")) // Output: 1, 2, 3, 4, 5, 6
In the above example, we first create two arrays array1 and array2 containing elements of Int type. We then concatenate the two arrays using the ++ operator and store the result in the concatenatedArray variable. Finally, we print the elements of the concatenated array using the mkString method.
We can also concatenate arrays of different types. Here's an example:
val array1 = Array(1, 2, 3)
val array2 = Array("four", "five", "six")
val concatenatedArray = array1 ++ array2
println(concatenatedArray.mkString(", ")) // Output: 1, 2, 3, four, five, six
In the above example, we concatenate an array of integers with an array of strings, resulting in an array of Any type.