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• Naming Rules
  • The following naming rules for Java object names have to be considered: https://docs.oracle.com/javase/specs/jls/se7/html/jls-3.html#jls-3.8
  • No control characters are allowed: [^\\x00-\\x1F\\x7F\\x80-\\x9F]
  • No punctuation characters are allowed. However, dots '.', underscore '_' and dash '-' are allowed: [^\\x20-\\x2C\\x2F\\x3A-\\x40\\x5B-\\x5E\\x60\\x7B-\\x7E\\xA0-\\xBF\\xD7\\xF7]
    • Dot: is not allowed as a leading or trailing character and two dots in sequence are not allowed.
    • Dash: is not allowed as a leading or trailing character and two dashes in sequence are not allowed.
    • Brackets are not allowed [({})]
  • Halfwidth characters are not allowed, see Halfwidth and Fullwidth Forms (Unicode block).
  • Spaces are not allowed.
  • Object Names may start with a digit.
  • Use of Java reserved keywords is not allowed:
    • "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"
    • Example: use of the reserved keyword "switch" is not allowed, use of "myswitch" is allowed.
• Examples
  • National language characters such as Japanese:
    • こんにちは世界
  • Use of dot, dash, underscore:
    • Say.Hello
    • Say-Hello
    • say_hello

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