The correct answer is: A. Quotation mark
A string literal is a sequence of characters enclosed in quotation marks. The quotation marks can be single quotes (‘) or double quotes (“). The string literal is interpreted as a single entity, and the characters between the quotation marks are not interpreted as special characters.
For example, the following code defines a string literal:
string str = "Hello, world!";
The string literal “Hello, world!” is stored in the variable str. The string literal can be used in any place where a string is expected. For example, the following code prints the string literal to the console:
System.out.println(str);
The output of the code is:
Hello, world!
The other options are incorrect because they are not used to enclose string literals.
- Option B: Question mark is used to end a question.
- Option C: Exclamation mark is used to end an exclamation.
- Option D: Dollar mark is used to represent a currency value.