java - How can I sum the product of two two-dimensional arrays? -

so got code 2 arrays: 1 array contains tickets sold 3 cinemas , other 1 contains adult , kid prices. code outputs total every cinema separately (3 lines of output) need total number of 3. instead of printing 828 cinema1, 644 cinema2, 1220 cinema3 , need print 2692 (total of 3 cinemas). how can sum 3 products loop? here's code:

public class arrays {     public arrays() {}     public static void main(string[] args) {          float[][] = new float[][] {{29, 149}, {59, 43}, {147, 11}};         float[] b = new float[] {8, 4};         string[] s = new string[] {"cinema 1", "cinema 2", "cinema 3"};         string[] t = new string[] {"adults", "children"};         int i,j;         system.out.println("cinema complex revenue\n\n");         ( = 0 ; <= 2 ; i++ )         {             ( j = 0 ; j < 1 ; j++ )             {                 system.out.println(s[i] + "\t$" +                   (a[i][j] * b[j] + a[i][j + 1] * b[j + 1]));             }         }     } } 

and output: 1

just code want.

int i, j; float sum = 0; (i = 0; < a.length; i++) {     (j = 0; j < a[i].length && j < b.length; j++) {         sum += a[i][j] * b[j];     } } system.out.println(sum); 

or if want use 1 for loop, may be

int i; float sum = 0; (i = 0; < a.length * b.length; i++) {     sum += a[i / b.length][i % b.length] * b[i % b.length]; } system.out.println(sum);