Resort Evening Attire Going On A Carnival Cruise - Fun Ship .... Need A Little Help!?!?

Going on a Carnival cruise - fun ship .... need a little help!?!? - resort evening attire

Suggests, there is a dress code, and wrote:

Depending on the duration of the trip, either formal dress or casual clothing is required in the dining room. The requirement for children is the same. For those who do not have to dress, the restaurants every night at the Lido (with the exception of last night opened) of the cruise and have a casual dress code. Formal Wear: Tuxedo (optional), a suit and tie, jacket, tie and pants, evening dress, cocktail dress, pantsuit Casual Resort Wear: sport shirts and trousers, dresses, skirts, pants suit NOTE: Shorts, T-shirts and swimwear in the dining room during dinner are not allowed.

For example, some people can give me some good ideas about what to do to look good! (I'm 22 years old and would like at my age) are visually
Would you be able to see what we are talking about!
I am also one days 5, so that only a formal night!

Also anyone know if there is more than dress codes for all the other rooms on abortion boat?