Question

The \u0021 article referred to as a

i) Unicode escape sequence

ii) Octal escape

iii) Hexadecimal

iv) Line feed

Answer 1

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)