Java Programming Keywords Summary

Here are the summary of the available keywords in the Java programming language. Keywords are a reserved word that already taken and internally used by Java, so we cannot create variables and name it using this keyword.

Keyword	Meaning
abstract	an abstract class or method
assert	used to locate internal program errors
boolean	the Boolean type
break	breaks out of a switch or loop
byte	the 8-bit integer type
case	a case of a switch
catch	the clause of a try block catching an exception
char	the Unicode character type
class	defines a class type
const	not used
continue	continues at the end of a loop
default	the default clause of a switch
do	the top of a do/while loop
double	the double-precision floating-number type
else	the else clause of an if statement
extends	defines the parent class of a class
final	a constant, or a class or method that cannot be overridden
finally	the part of a try block that is always executed
float	the single-precision floating-point type
for	a loop type
goto	not used
if	a conditional statement
implements	defines the interface(s) that a class implements
import	imports a package
instanceof	tests if an object is an instance of a class
int	the 32-bit integer type
interface	an abstract type with methods that a class can implement
long	the 64-bit long integer type
native	a method implemented by the host system
new	allocates a new object or array
null	a null reference
package	a package of classes
private	a feature that is accessible only by methods of this class
protected	a feature that is accessible only by methods of this class, its children, and other classes in the same package
public	a feature that is accessible by methods of all classes
return	returns from a method
short	the 16-bit integer type
static	a feature that is unique to its class, not to objects of its class
strictfp	Use strict rules for floating-point computations
super	the superclass object or constructor
switch	a selection statement
synchronized	a method or code block that is atomic to a thread
this	the implicit argument of a method, or a constructor of this class
throw	throws an exception
throws	the exceptions that a method can throw
transient	marks data that should not be persistent
try	a block of code that traps exceptions
void	denotes a method that returns no value
volatile	ensures that a field is coherently accessed by multiple threads
while	a loop