Array Confusion with Doubles/doubles

Question

I have two Arrays that are initialized as such:

    public static double[] arrayweight= new double[100];
    public static double[] arraypulse= new double[100];

They are filled with data e.g. 23.0,25.8....etc.

I need to combine the two Arrays into one array of double[]

I have chosen to use the following approach which does not work. Any ideas?

     ArrayList <Double> al = new ArrayList<Double>();

// The following methods do not work ;(     
     al.add((double[]) Global.arrayweight);
     al.add(new Double(Global.arraypulse));

Answer 1

You can achieve it using System.arraycopy.

double[] cArray= new double[Arrayweight.length + Arraypulse.length];
System.arraycopy(Arrayweight, 0, cArray, 0, Arrayweight.length);
System.arraycopy(Arraypulse, 0, cArray, Arrayweight.length, Arraypulse.length);