Which of the following keywords is used to create "read only" variable?Select one:classcharconstint

To determine which keyword is used to create a "read-only" variable in programming, we analyze the provided options:

1. class: This keyword is used to define a class in programming languages like Java and C++. It is not related to creating read-only variables.

2. char: This keyword is used to declare a character type variable. It specifies that a variable can hold a single character and does not imply read-only characteristics.

3. const: This keyword is used in several programming languages (such as C, C++, and JavaScript) to declare a variable whose value cannot be changed after it has been initialized. This characteristic makes the variable "read-only."

4. int: This keyword is used to declare an integer type variable. Like char, it does not imply that the variable is read-only.

Final Answer

The correct keyword to create a "read-only" variable is const.