Java 8.

Given the definition of a 2D array such as follows: String[][] data = { {"A", "B"}, {"1", "2"}, {"XX","YY","ZZ"} }; Write a recursive program that outputs all combinations of each subarray in order. In the previous example, the desired output might look like the following:

A 1 XX

A 1 YY

A 1 ZZ

A 2 XX

A 2 YY

A 2 ZZ

B 1 XX

B 1 YY

B 1 ZZ

B 2 XX

B 2 YY

B 2 ZZ Your program should work with arbitrarily sized arrays in either dimension. For instance, consider the following input array: String[][] data = { {"A"}, {"1"}, {"2"}, {"XX","YY"} }; Should output:

A 1 2 YY

A 1 2 YY

I made the 2D array into a single arrayList. Need help with resursive method. Please help!