abstract assert boolean break byte
case catch char class const
continue default do double else
enum extends final finally float
for goto if implements import
instanceof int iterface long native
new package private protected public
return strictfp short static super
switch synchronized this throw throws
transient try void volatile while
Java所有的组成部分都需要名字。类名,变量名以及方法名都被称为标识符。
原文:https://www.cnblogs.com/coffee-cake/p/14391557.html