Reserved Words In java

Reserved Words In java

The list of reserved words in Java is provided below.

Reserved Words 


Some identifiers are reserved to associate some functionality or to represent values, such type of reserved identifiers are called “Reserved Words

Keywords for Datatypes 


byte 

short 

int 

long 

float 

double 

char 

boolean 

Keywords for FlowControl 

if 

else 

switch

case 

default 

do 

while 

for 

break 

continue

return  

Keywords for ExceptionHandling 

try 

catch 

finally 

throw 

throws 

assert 

Keywords for Modifers 

public 

private 

protected 

final 

abstract 

static 

native 

synchronized 

volatile 

transient 

strictf

Class Related Keyword

class  

interface
package 

extends 

implements
import 

Object Related Keywords 

new 

instanceof

super 

this

void  return type Keywords 

   if a method doesn’t return anything compulsory that method should be with void return type 

 UnUsed Keywords 

goto -in java usage is considered as harmful.   
const  - alternatively we should use final keyword. 


 Enum Keyword   

 This keyword has introduced in 1.5 version, to define user defined data types.    

Reserved Literals 

(true,false)- Allowed values for boolean data types  

null -Default value for object reference 

Which of the following are valid java Reserved words ? 

1) int, float, signed, double - (Wrong)

 2) abstract, final, volatile, virtual - (Wrong)

 3) new, delete   - (Wrong)

 4) goto, constant, static  - (Wrong)

 5) byte, short, int, long   -(Right)

Note: All reserved words in java contain only lower case alphabet symbols. 

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