ODC

package com.company;

public class Main {

    static double a[] = new double[10];
    static double b[] = new double[10];
    static double ox[] = new double[10];
    static double oy[] = new double[10];
    static double xy[][] = new double[10][10];

    public static void main(String[] args) {
        init();
        calculation();
    }

    public static void init(){
        b[0] = 1;
        b[1] = 1;
        xy[0][0] = 200;
        xy[0][1] = 700;
        xy[1][0] = 300;
        xy[1][1] = 100;
        oy[0] = 1800;
        oy[1] = 900;
        ox[0] = 1100;
        ox[1] = 1500;
    }

    public static void GetAFactor(){
        double dominator = 0;
        for (int i = 0; i < 10; i++){
            for (int j = 0; j < 10; j++){
                dominator += (xy[i][j] * b[j]);
            }
            a[i] = oy[i] / dominator;
        }
    }

    public static void GetBFactor(){
        double dominator = 0;
        for (int i = 0; i < 10; i++){
            for (int j = 0; j < 10; j++){
                dominator += (xy[j][i] * a[j]);
            }
            b[i] = ox[i] / dominator;
        }
//        b[0] = ox[0] / ((xy[0][0] * a[0]) + (xy[1][0] * a[1]));
//        b[1] = ox[1] / ((xy[0][1] * a[0]) + (xy[1][1] * a[1]));
    }

    public static void calculation(){
        for (int i = 0; i < 7; i++){
            GetAFactor();
            GetBFactor();
        }

        System.out.println(a[0] + "," + a[1] + "," + b[0] + "," + b[1]);
    }
}