List Of All Java Keywords

1. abstract - It specifies that the a class or method will be implemented later in a subclass.
2. assert - It signifies an assertion statement.
3. boolean - It is data type that can hold True or False values only.
4. break - It is a control statement for breaking out of loops.
5. byte - It is data type that can hold 8-bit data values.
6. byvalue - It is reserved for future use.
7. case - It is used in the switch statements  to mark block of text
8. cast - It is reserved for future use.
9. catch - It catches exception generated by try statements.
10. char - It is a data type that can hold unsigned 16-bit Unicode characters.
11. class - It declare a class
12. const - It is reserved for future use.
13. continue - It send control back outside a loop.
14. default - It specifies the default block of code in a switch statement.
15.  do - It starts do-while loop
16. double - It is data type that can hold 64-bit floating point numbers
17. else - It indicates alternative branches in an if statements
18. enum - It declares enumerated data type variables
19. extends - It indicated that class is derived from another class or an interface is derived from another interface.
20. false - It indicates one of the two permissible values for a boolean variable.
21. final - It indicates that a variable holds a constant value or that a method will not be overridden.
22. finally - It indicates a block of code in a try-catch structure that will always be executed.
23. float - It is a datatype that holds a 32-bit floating-point number
24. for - It is used for start for loop
25. future - It is reserved for future use.
26. generic - It is reserved for future use.
27. goto -  It is reserved for future use.
28. if - It test a true/false expression and branches accordingly
29. implements - It specifies that a class implements an interface
30. import - It references other classes
31. inner - reserved for future use
32. instanceof - It indicates whether an object is an instance of a specific class or implements a specific interface.
33. int - It is a data type that can hold a 32-bit signed integer
34. interface - It declare an interface.
35. long - It is data type that holds a 64-bit integer
36. native - It specifies that a method is implemented with native (platform-specific) code
37. new - It creates new object
38. null - It indicates that a reference does not refer to anything
39. operator - It reserved for future use.
40. outer - It reserved for future use.
41. package - It declare a java package 
42. private - It is an access specifier indicating that a method or variable may be accessed only in the class it's declared in
43. protected - It is an access specifier indicating that a method or variable may only the accessed in the class it has declared (or a subclass of the class it has declared in or other classes in the same package )
44. public - It is access specifier used for classes , interface , methods , and the variables indicating that an item is accessible throughout the application ( or where the class that defines it is accessible)
45. rest - It is reserved for future use
46. return - It send a control and possibly a return value back from a called method
47. short - It is a data type that can hold a 16-bit integer.
48. static - It indicates that a variable or method is class method (rather than being limited to one particular object)
49. strictfp - It restricts the precision and rounding of floating-point numbers.
50. super - It refers to a class's base class (used in a method or class constructor)
51. switch - It is statement that executes code on the basis of a test value.
52. synchronized - It specifies critical section or methods in a multithreaded code.
53. this -It refer to a current object in  a method or constructor
54. throw - It creates an exception
55. throws - It indicates what exception may be thrown by a method.
56. transient - It specifies that is not part of an object's persistent state.
57. try - It start block of code that will be tested for exceptions
58. true - It indicates one of the two permissible values for a boolean variable.
59. var - It reserved for future use.
60. void - It specifies that a method does not have a return value.
61. volatile - It indicates that a variables may change asynchronously 
62. while - It starts a while loop