Java Keywords
Keyword List
The following is a list of keywords in the Java programming language.
The following identifiers cannot be used as identifiers in a program. The keywords const and goto are currently not used, but they are reserved. true, false, and null may look like keywords, but they are actually literals. They cannot be used as identifiers in a program. All reserved words are lowercase.
| abstract | continue | for | new | switch |
|---|---|---|---|---|
| assert*** | default | goto* | package | synchronized |
| boolean | do | if | private | this |
| break | double | implements | protected | throw |
| byte | else | import | public | throws |
| case | enum**** | instanceof | return | transient |
| catch | extends | int | short | try |
| char | final | interface | static | void |
| class | finally | long | strictfp** | volatile |
| const* | float | native | super | while |
| * Not used | ||||
| ** Added in version 1.2 | ||||
| *** Added in version 1.4 | ||||
| **** Added in version 5.0 |