Java - How to return term as a polynomial

Question

I have an array storing the coefficient and exponent of each term of a polynomial, type Term(coefficient, exponent). I need to return the polynomial as a string for display with each term in the form "coefficient*x^exponent".

Here's what I have so far.

    public Polynomial solveSequence()
    {
        int exponent;
        int i = 0;
        Term[] poly = new Term[i];
        while (exponent > 0)
        {
            poly[i] = nextTerm();
            updateSequence(nextTerm());
            getSequence();
            i++;
        }
        return null;
    }