abstract, assert, boolean, break, byte, case, catch, char, class, const（保留關鍵字）, continue, default, do, double, else, enum, extends, final, finally, float, for,goto（保留關鍵字）, if, implements, import, instanceof, int, interface, long, native, new, package, private, protected, public, return, short, static, strictfp, super, switch, synchronized, this, throw, throws, transient, try, void, volatile, while

2、保留字：

byValue, cast, false, future, generic, inner, operator, outer, rest,true, var, goto （保留關鍵字） , const （保留關鍵字） ,null