JAVA

Reserved Words

Any programming language reserves some words to represent functionalities defined by that language. These words are called reserved words.

They can be briefly categories into two parts : keywords(50) and literals(3).

Identifiers are used by symbol tables in various analyzing phases(like lexical,syntax,semantic) of a compiler architecture.

Note : The keywords const and goto are reserved, even though they are not currently used. In place of const, final keyword is used. Some keywords like strictfp are included in later versions of Java.

Java Reserved Keywords List

You can use keyword as identifier in your Java programs, its reserved words in Java library and used to perform an internal operation.

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	interface
long	native	new	package
private	protected	public	return
short	static	strictfp	super
switch	synchronized	this	throw
throws	transient	try	void
volatile	while	true	false
null

        true, false and null are not reserved words but cannot be used as identifiers, because it is literals of built-in types.