3. You are given two one dimension arrays called 'A1' and 'A2'. Array types is 'int' and dimension of arrays are 'm' and 'n'. Array 'A1' and 'A2' are sorted to ascending order and both of them are ready to use (you don't need to fill them). Write a java program that merges these two arrays in a new array called 'A3'. Array 'A3' must be in the ascending order