Fibonacci sequence

public class FibonacciSequence {

    public static void main(String[] args) {
        // the fibonacci begins with 1, 1, and each subsequent number
        // is derived from the sum of the previous two

        long[] fibonacci= new long[20];
        fibonacci[0]=1;
        fibonacci[1]=1;

        for (int i=0;i<fibonacci.length-2;i++) {
            fibonacci[i+2]= fibonacci[i+1] + fibonacci[i];
        }


    }

}