Classes

Classes

1. Blueprint/template

2. Naming Convention: Capitalize the Initial of Each Word

3. Constructor

   • Objects
     • Fields (attributes)
       • Examples for car: 1) color 2) number of tires 3) plate number 4) number of valves
       • Camel Naming Convention
     • Methods (actions)
       • Examples for car: 1) run 2) brake
       • Camel Naming Convention
     • Both fields and methods are optional
     • Creating an object: Use new keyword
       • Example: new Employee();
     • Assigning to an Object Variable: Declare an object reference with the same type as the object
       • Example: Employee employee = new Employee();
     • Call a method or field: Use a period (.)
       • Examples: objectReference.methodName objectReference.fieldName
     • Reference Variable has No Value: Use "null"
       • Example: Book book = null;
   • Every class has at least one
   • Often called "a constructor method" but does not have a return value