Rules for Constructing Character Constants
A character constant is a single alphabet.
A single digit or a single special symbol enclosed within single inverted commas.
Both the inverted commas should point to the left.
For example:
’A’ is a valid character constant whereas ‘A’ is not.
The maximum length of a character constant can be 1 character.
Ex.:
'A'
'I'
'5'
'='
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