What kind of adapter do I need to connect the lens to a Nikon D3100?

I have 2 old lens that I would like to use on my Nikon D3100. Unfortunately, I'm not sure how to tell what type of lens adapter I need. The links below are photos of the lens:
1. The firest lens:
http://photo.pchome.com.tw/bertkao/115758799815
http://photo.pchome.com.tw/bertkao/115758800297
2 The other lens:
http://photo.pchome.com.tw/bertkao/115758799329
http://photo.pchome.com.tw/bertkao/115758798838

1. The firest lens:
http://photo.pchome.com.tw/bertkao/115758799815
http://photo.pchome.com.tw/bertkao/115758800297
2 The other lens:
http://photo.pchome.com.tw/bertkao/115758799329
http://photo.pchome.com.tw/bertkao/115758798838

The Yashica TL Electro used the M42 screw-mount so to use the lens from it you'll need an M42 to Nikon adapter.
http://www.rugift.com/photocameras/m42-nikon-af-confirm-adapter-programmable.htm

There's no adapter I know of to allow using the Minolta Maxxum "A" mount lens on a Nikon.