### Question:
ViewFrustum { public boolean contains(Vector3f vec) { for (int p = 0; p < 6; p++) { if (distance(p, vec) <= 0) { return false; } } return true; }  void update(Matrix4f projection, Matrix4f view, Vector3f paramPosition); boolean intersects(Cuboid c); boolean contains(Vector3f vec);  }### Answer:
@Test public void testContains() { Matrix4f projection = Matrix4f.createPerspective(70, 16 / 9.0f, 1, 2000); Matrix4f view = Matrix4f.createLookAt(new Vector3f(0, 0, 0), new Vector3f(0, 0, 1000), Vector3f.UP); frustum.update(projection, view, new Vector3f(0, 0, 0)); }