Array Shuffling( java)?

Question

I want to shuffle array list. for example :
I have two arrays
String []Ab={"a","b"};
String []Bc={"c","d"};

Now I want to shuffle and merge them like "ac" or "bd"or "bc"or"ad"
How is this possible?

Answer 1

String[] Ab = {"a", "b"};
String[] Bc = {"c", "d"};
int rand1 = (int)Math.round(Math.random());
int rand2 = (int)Math.round(Math.random());
System.out.println(Ab[rand1] + Bc[rand2]);