// A body with a name and an associated force. The leaf node of
// a hierarchical cosmic system. This class implements 'CosmicSystem'.
//
public class NamedBodyForcePair /* TODO: add clause */ {

    // TODO: define missing parts of this class.

    // Initializes this with name, mass, current position and movement. The associated force
    // is initialized with a zero vector.
    public NamedBodyForcePair(String name, double mass, Vector3 massCenter, Vector3 currentMovement) {
        // TODO: implement constructor.

    }

    // Returns the name of the body.
    public String getName() {
        // TODO: implement method.
        return "";

    }
}