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Written by Admin
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Thursday, 19 February 2009 08:43 |
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Java Language Keywords Here's a list of keywords in the Java language. These words are reserved - you cannot use any of these words as names in your programs. true, false, and null are not keywords but they are reserved words, so you cannot use them as names in your programs either. 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 1.2 *** added in 1.4 **** added in 5.0 Identifier 1) An identifier is a word used to name a variable, method, class or label. 2) Keywords and reserved words may not be used as identifiers. 3) An identifier must begin with a letter, a dollar sign ($), or an underscore (_). 4) Identifiers are case-sensitive. 5) They must not begin with a number.
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