Java Keywords

Access Control

Access Levels Modifier	Class	Package	SubClass	World
private	Y	Y	N	N
protected	Y	Y	Y	Y
public	Y	Y	Y	Y
(default)	Y	Y	N - different package Y - same package	N

Class & Variable & Methods

Modifier	Description
class
interface
default	default declare a default method in an interface
enum
abstract
extends
implements
final
static
var	New from Java 10
new
native
volatile
synchronized
transient
strictfp

Flow Control

Keyword	Remark
for
if
else
while
switch
case
break	Used in while, for, switch
return
continue
do
instanceof

Error Handle

Keyword	Remark
try
catch
finally
throw
throws

Package Imports

Keyword	Remark
import	import a package
package	declare a package name

Variable Reference

Keyword	Remark
super	Used to invoke or reference to parent's method or variable
this	Used to invoke or reference to current class' method or variable

Operators

Keyword	Remark
.	Access a variable's method or variable
++	a++ or ++a
--	a-- or --a
+
-
\(*\)
/	divide
|
||
&
&&
^
%
!
=
? :

Reserved

Keyword	Remark
goto	Not used in Java, but kept as a keyword
const	Not used in Java, but kept as a keyword