convert this java code to c#

//Define the class for binary FSK modulation and de-modulation public class BinaryFSK { // Driver method main public static void main(String args[]) { // Define array for Binary Information int x[] = { 1, 0, 0, 1, 1, 0, 1 };

// Define variable for bit period double bp = 0.000001;

// Display Binary information System.out.println("Binary information at Trans mitter: "); for (int i = 0; i < x.length; i++) System.out.print(x[i] + " ");

// XX representation of transmitting binary information as digital signal XXX int se[] = new int[100]; int bit[] = new int[700]; int j = 0; for (int n = 0; n < x.length; n++) { if (x[n] == 1) { // Initialize the array se for (int i = 0; i < 100; i++) { se[i] = 1;

// Update the bit array bit[j++] = se[i]; } }

else if (x[n] == 0) { // Initialize the array se for (int i = 0; i < 100; i++) { se[i] = 0;

// Update the bit array bit[j++] = se[i]; } } }

// Initialize the t1 array double t1[] = new double[700]; j = 0; for (double i = (bp / 100); i <= 100 * x.length * (bp / 100); i = i + (bp / 100)) t1[j++] = i;

// XXXXXXXXXXXXXXXXXXXXXXXXXXX Binary-FSK modulation XXXXXXXXXXXXXXX int A = 5; // Amplitude of carrier signal double br = 1 / bp; // bit rate double f1 = br * 8; // Carrier frequency for information as 1 double f2 = br * 2; // Carrier frequency for information as 0 double t2[] = new double[700]; int ss = t2.length; double m[] = new double[700]; double y[] = new double[700];

j = 0; for (double i = (bp / 99); i <= bp; i = i + (bp / 99)) t2[j++] = i;

j = 0; for (int i = 0; i < x.length; i++) { if (x[i] == 1) for (int k = 0; k < t2.length; k++) { y[k] = A * Math.cos(2 * Math.PI * f1 * t2[k]);

// Initialize the modulation array m m[j++] = y[k]; }

else for (int k = 0; k < t2.length; k++) { y[k] = A * Math.cos(2 * Math.PI * f2 * t2[k]);

// Initialize the modulation array m m[j++] = y[k]; } }

double t3[] = new double[700]; j = 0; for (double i = (bp / 99); i <= bp * x.length; i = i + (bp / 99)) t3[j++] = i;

// XXXXXXXXXXXXXXXXXX Binary FSK demodulation XXXXXXXXXXXXXXXXXXXX // Define the array mn double mn[] = new double[700]; double t[] = new double[700]; double y1[] = new double[700]; double y2[] = new double[700]; double mm[] = new double[700]; double mmm[] = new double[700]; double t4[] = new double[700]; double z1, z2; long zz1; long zz2;

j = 0; int l = 0; for (int n = ss; n <= m.length; n = n + ss) { for (double i = (bp / 99); i <= bp; i = i + (bp / 99)) t[j++] = i;

for (int i = 0; i < t.length; i++) { y1[i] = Math.cos(2 * Math.PI * f1 * t[i]); // Carrier signal for information 1 y2[i] = Math.cos(2 * Math.PI * f2 * t[i]); // Carrier signal for information 0

for (int k = n - (ss - 1); k <= n; k++) { mm[k] = y1[k] * m[k]; mmm[k] = y2[k] * m[k]; for (double o = (bp / 99); o <= bp; o = o + (bp / 99)) t4[l++] = o;

z1 = integrate(t4, mm, 0, 10); // Integration z2 = integrate(t4, mmm, 0, 10); // Integration

zz1 = Math.round(2 * z1 / bp); zz2 = Math.round(2 * z2 / bp);

} } } j = 0; for (double k = (bp / 100); k <= 100 * mn.length * (bp / 100); k = k + (bp / 100)) t4[j++] = k; }

// Definition of method integrate static double integrate(double t4[], double mm[], int a, int b) { double sum = 0.5 * (mm[a] + mm[b]); double h = (b - a) / 100; for (int i = 0; i < mm.length; i++) { double x = a + h * i; sum = sum + mm[i] * x; }

return sum * h; }

}