From the Model to the Code First Task

From the Model to the Code First Task

1. Java Objects

   • Have attributes and can perform actions
     • Camel Naming Convention: Capitalize the initial of each word except the first
       • Attributes are called Fields
         • age
         • validAddress
         • Fields are variables that can be primitives or references to objects
           • A reference variable without a value is said to have a "null" value
       • Actions are called Methods
         • getSalary
         • getAddress
         • Methods define actions that a class's objects (or instances) can do
           • Method "main" provides the entry point to an application
   • The "new" keyword creates objects

2. Java Classes

   • A blueprint/template to determine objects of identical type
     • Class Name
       • Pascal Naming Convention: Capitalize the initial of each word
         • Employee
         • DateUtility
         • PostOffice
     • Constructors
       • Used to construct objects