what is the output of the following code?

class Test {
    public void display(int x, double y) {
        System.out.println(x+y);
    }

    public double display(int p, double q) {
        return (p+q);
    }

    public static void main(String args[]) {
        Test test = new Test();
        test.display(4, 5.0);
        System.out.println(test.display(4, 5.0));
    }
}