Identify Tokens

Question

Calculate total no of Tokens and also determine there types:-

a)  a9997.7b884.cddf2.77

b)  74>><<2gfh0012

c)  a>=ab.785!lklk

d)  a9997.b884.100intcddfloat2.77

Q2)  Differentiate between Tokens, Lexeme and Pattern with the help of example

Eg. int a;

Answer 1

For 2^nd One 

https://stackoverflow.com/questions/14954721/