An instance variable reserves memory for the data your class needs . Let’s assume you want to add a place for a string or int variable. You can use an instance variable to reserve that memory for the lifetime of the object. Each object will receive unique memory for its variables.
What is the purpose of instance?
An instance variable reserves memory for the data your class needs . Let’s assume you want to add a place for a string or int variable. You can use an instance variable to reserve that memory for the lifetime of the object. Each object will receive unique memory for its variables.