Elementary Computer Magic

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This is a handy reference to the most common, elementary magic of computer demonology.

Magic Words

Magic words (AKA reserved words) are lower case words that may not be used for names of classes, methods, fields or local variables. They include:

  • class
  • int
  • double
  • void


  • static public void main(String[] args)
  • System.out.println(anyThing);


Arcana means hidden knowledge, and there is much hidden knowledge in the Java class libraries.

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