How to flatten 2D array to 1D array?

Question

How can I flatten the 2 dimensions array int originalArray[][] to 1 dimension array?

    int a [] = {1,2,6,7,2};     int b [] = {2,44,55,2};     int c [] = {2,44,511,33};      int originalArray [][] = new int[][]{a,b,c}; 

Answer 1

With Guava, you can use either

int[] all = Ints.concat(originalArray);

or

int[] all = Ints.concat(a, b, c);