Variables

Variables store values. Variables have a name, a type, and a value.

For example, in a program concerned with company accounts, we may define a class called Customer, representing and managing the details of the company's customers. Variables of Customer may include name, address, credit limit, etc. Each object of class customer may have different values of these variables.

Taking the 'Customer' example, let's assume that the important features of a customer are name, address, account balance and credit limit. We might define this as below:

class Customer
    {
         // Variables of customer

String name;
String address;
int accountBalance;
int creditLimit;
// Methods of Customer go here

      }