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public class Gesamtschrittverfahren {
    public static void main(String[] args) {
        double[][] A = {{10,14,11},{13,-66,14},{11,-13,12}};
        double[] b = {1,1,1};
        double[] xstart = {0,0,0};

        double[] xfertig = jacobi(A,b,xstart,100);
        System.out.println(Arrays.toString(xfertig));
    }

    private static double[] jacobi(double[][] A, double[] b, double[] xalt, int schritte){
        double[] xneu;
        xneu = new double[b.length];
        for (int k = 0; k < schritte; k++) {
            System.arraycopy(b, 0, xneu, 0, b.length);

            for (int i = 0; i < b.length; i++) {
                for (int j = 0; j < b.length; j++) {
                    if (i!=j){
                        xneu[i] = xneu[i] - A[i][j]*xalt[j];
                    }
                }
                xneu[i] = xneu[i]/A[i][i];
            }

            System.arraycopy(xneu, 0, xalt, 0, b.length);

        }
        return xalt;
    }
}