Java将什么精确的类用于数组，以及如何在Scala中实例化它？

Question

I need to pass a 2-dimensional Java array of primitive values defined as

int myArray[][] = {{ 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 }};

in Java terms into a Java library function from a Scala application.

How to define such an object in Scala?

Answer 1

The equivalent Scala to your Java is:

val myArray = Array(Array(1, 2), Array(3, 4), Array(5, 6), Array(7, 8))

Scala uses the exact same Array that Java does. An Array in Scala appears to have additional functionality because arrays are implicitly wrapped by WrappedArray .

For much more, see this answer .