Thread: Need help

I've been studying for my OCP certification and I've come across something I don't understand.
Note: the code below is non-sense and not meant to do anything real but rather to illustrate the behavior that I'm curious about. I would never write production code like this but I can't help but be puzzled as to why it works this way.

The following code compiles w/o issue

 char end = 'z';
 String s = "";
 Predicate<Character> predicate = c -> {
   char start = 'a';
   return start <= c && c <= end;
 };
 char c = 'Z';
 char start = 'B';

if I move the final two lines of that block above the predicate definition it doesn't compile and it instead complains that I'm attempting to redeclare c & start inside my predicate.

 char end = 'z';
 String s = "";
 char c = 'Z';
 char start = 'B';
 Predicate<Character> predicate = c -> {
   char start = 'a';
   return start <= c && c <= end;
 };

I assume this is something about how Java deals with lambda methods but why does having the declarations for c & start before the predicate cause issues while having them below does not?