This is java problem how to get int into char 2d array

this is the formula abs(x2-x1) + abs(y2-y1)

x1 = 2

x2 = 12

y1= 2

y2 = 4

with the formula the expected output is 12 as int but in char i cant get 12 as it is because char is from 0 to 9 only.

how to i make the char array accept 2 digit number?

array[x][y] = (char)('0'+(Math.abs(x2 - x1)) + (Math.abs(y2- y1))) ;