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Q:
The \u0021 article referred to as a

i) Unicode escape sequence

ii) Octal escape

iii) Hexadecimal

iv) Line feed

1 Answer

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Unicode escape sequence

Reason: In Java, Unicode characters can be used in string literals, comments, and commands, and are expressed by Unicode Escape Sequences. A Unicode escape sequence is made up of the following articles:

  • A backslash '\' (ASCII character 92)
  • A 'u' (ASCII 117)
  • One or more additional 'u' characters that are optional.
  • A four hexadecimal digits (a character from 0 - 9 or a-f or A-F)

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