Invoking an Object's Method

An object consists of both variables (state information) and methods (small programs). Both of these are called members of the object.

To access the members of an object use dot notation :

referenceToAnObject.memberOfObject

For example, to invoke the length() method of the object named str1 do this:

                                                          
str1.length();  

To store the value computed by the length method in a variable, do this:

                                                          
len  = str1.length();  

Method names have () at their end. Often there is additional information inside the (), but they are required even if they contain nothing.