fouzih / savingsaccountmethod

Methods

--Create object behavior using methods 


Methods                               Fields

(behavior)                            (state)
------------                        ------------
withdrawal, deposit                    balance


State tells us what a savings account should know:
    The balance of money available


The behavior tells us what tasks a savings account should be able to perform:
    Depositing - increasing the amount available 
    Withdrawing - decreasing the amount available 
    Checking the balance - displaying the amount available 
    Transaction -- displaying detailed transaction 

Methods are repeatable, modular blocks of code used to accomplish specific tasks

Scope 
    A method is task that an object of a class performs 
    We mark of the domain of this task using a curly braces { , and }

    Everything inside the {} <---- is part of the task. 
        ** This domain inside teh {} is called scope 

    
    Adding Parameters


    Returns


    Remember, variables can only exist in the scope that they were declared in. We can use a value outside of the method it was created in if we return it from the method. 

    We return a value by using the keyword return:

    public int numberOfTire () {
        int tires = 4;

            return tires;
    }


    Void keywords mean completely empty and indicates that no value is returned after calling that method.

    The toString() Method