<11일차>
class & interface , abstract
int, byte, short, long, float, double, boolean, char, true, false, void, return, 12
if, else, switch, case, default, break, while, do, for, continue, 10
class, new, this, super, extends, abstract, interface, implements, 8
package, import, 2
public, private, protected, static, final, 5
try, catch, finally, throws, throw, 5
assert, enum, 2
transient, volatile, native, strictfp, 4 => 거의사용 안함
const, goto, 2=> 사용못함 예약어



