Implement a class Moth that models a moth flying along a straight line. The moth has a position, which is the distance from a fixed origin. When the moth moves toward a point of light, its new position is halfway between its old position and the position of the light source. Supply a constructor:

public Moth (double initialPosition) and methods public void moveToLight (double lightPosition) public double getPosition () Your MothTester should construct a moth, move it toward a couple of light sources, and check that the moth's position is as expected.