Why I cannot see array values on worksheet anymore? Follow

Hello all, 

I would kindly ask help for values of array. I am going to try explain with examples. When I write 

var a = new Array[Int](10) 

or 

val a1 = Array(1, 2, 3) 

I was able to see values of array.  Output was like below on scala worksheet  

a : Array[Int] = Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)

But recently I see only

a1: Array[Int] = [I@6b0910c9

How can I change, help me please.