A class defines a new data type.
A class is a template for an object, and an object is an instance of a class.
Class has data and the code that operates on that data.
A class is declared by use of the class keyword.
The general form of a class definition is shown here:
class classname {
type instance-variable1;
type instance-variable2;
// ...
type instance-variableN;
type methodname1(parameter-list) {
// body of method
}
type methodname2(parameter-list) {
// body of method
}
// ...
type methodnameN(parameter-list) {
// body of method
}
}
The data defined within a class are called instance variables.
Each object of the class contains its own copy of the instance variables.
The methods and variables defined within a class are called members of the class.