Question

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Is there a difference between single and double quotes in Java?

I’ve seen some code which uses the ‘ ‘ version to subtract character values from each other which I didn’t think was possible which got thinking as to what exactly they infer that is different?

What is the difference between ” ” and ‘ ‘? (How do they change how the code sees what ever is within the apostrophes / quotation marks etc.)

Answer 1

The difference is a matter of type. " " is a string literal, a Java String containing only a space character, and ' ' is a character literal, or a literal Java char. The String could contain 1 char, 2, 3, or more, and Strings are made up of an underlying array of char values like ' '.