** Instructions in a program are called methods. A method is a collection of some processing in programming. By writing the method name in the program, the processing of that method can be executed. ** **
Ruby has a lot of useful methods. For example, invoking character input mode in the terminal, the specified character Methods such as outputting to a terminal. Also, some methods can only be used for specific values.
Strings also have methods that you can use.
** A method is a collection of some processing in programming. ** **