too few too little

Difference (分別) between " too few " & " too little " .
1. " too few " (太少數目) - countable (數得到).
Eg. There are too few boys in the class.
Eg. There are too few new books in the library.
2. " too little (太少量) - uncountable (數不到).
Eg. There is always too little money in my wallet (錢包).
Eg. I feel sick because of too little rest as per these days.

we use 'too little' for uncountable nouns
e.g. too little time, too little money, too little water ...

'too few' for countable nouns
e.g. too few chairs in the room, too few people, too few books