Keyword

It is predefined in java.

It cannot be used as the identifier.

abstract 

boolean 

break

 byte 

case 

catch
char 

class

 const 

continue 

default 

 do
double 

else 

extends 

fi nal 

fi nally 

fl oat
for 

goto

 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
assert

 enum