Classes and Objects

  • Access modifier: This specifies the level of access that other parts of your code have to the class. There are three main access modifiers in Java:

    • Public: Can be accessed from anywhere.
    • Protected: Can be accessed within the same package or by subclasses.
    • Private: Can only be accessed within the same class.
    • Accessor methods return a value they dont have a void
    • mutator methods change the state of an

  • Static Methods

    • ex: when calling : object.method(); ie: student.getName(); will reutrn the students name usings static methods
    • math class provides static methods that we use through class.methdo();
    • ie: (Math.abs(-45)); will print 45 using string class objects

  • Constructor: A special method that is used to create instances of the class. Constructors have the same name as the class and can take parameters to initialize the object's properties.

    • have parameters
    • ex: person teacher = new perseon("mr.s, 39, ohio");

  • Modifiers/setters: Allow you to modify the values of the class's properties. Modifiers aka "setters" because they set the value of a property to a new value. Usually named using the pattern set.</p> </li>

  • Getters: Allow you to get the values of the class's properties. Getters usually named using the pattern get.</p> </li> </ul> </div> </div> </div> </div>