### Question:
Vector3D { public static float[] createVector(float[] start, float[] end) { float[] res = new float[4]; for (int i = 0; i < 3; i++) { res[i] = end[i] - start[i]; } res[w] = 0; return res; }  static float[] vectorMultiply(float[] lhs, float[] rhs); static float scalarMultiply(float[] lhs, float[] rhs); static float distanceVertices(float[] left, float[] right); static float vectorLength(float[] vector); static float[] createVector(float[] start, float[] end); static float distanceDotLine(float[] dot, float[] lineA, float[] lineB); static float distancevertexSegment(float[] dot, float[] segmentStart, float[] segmentEnd); static final float Epsilon; }### Answer:
@Test public void createVector() throws Exception { }