Scala列表包含vs数组包含

val list1 = List(1, 2, 3)
val list2 = List(4, 5, 6)

val result = list1 + list2
println(result) // Output: List(1, 2, 3, 4, 5, 6)

val list1 = List(1, 2, 3)
val list2 = List(4, 5, 6)

val result = list1 ++ list2
println(result) // Output: List(1, 2, 3, 4, 5, 6)

val list = 1 :: 2 :: 3 :: Nil
println(list) // Output: List(1, 2, 3)

import java.util.Arrays

val array = new int[]{1, 2, 3}
val list = Arrays.asList(array)
println(list) // Output: [1, 2, 3]

import java.util.Arrays

val array = new int[]{1, 2, 3}
val stream = Arrays.stream(array)
println(stream.collect(Collectors.toList())) // Output: [1, 2, 3]