//method yang return type arry
public class Array4{

    public static double[]  copy( double[] source ) {
        if ( source == null )
           return null;
        double[]  cpy;  // A copy of the source array.
        cpy = new double[source.length];
        System.arraycopy( source, 0, cpy, 0, source.length );
        return cpy;
    }

    public static void main(String args[]){
        double A[] = {1.1,2.2,3.3};
        double B[] ;
        B = copy(A);

        for (int i = 0; i < B.length; i++){
            System.out.println(B[i]);
        }
    }
}