Concatenating elements in an array to a string

Question

I\'m confused a bit. I couldn\'t find the answer anywhere ;(

I\'ve got an String array:

String[] arr = [\"1\", \"2\", \"3\"];

then

Answer 1

take a look at generic method to print all elements in an array

but in short, the Arrays.toString(arr) is just a easy way of printing the content of a primative array.