polymorphism java example shape of objects

(''Joint' balance is: ' + partners.getBalance()) JointTest.javaĪccount cust1 = new Account('Mike',100.00) Īccount cust2 = new Account('Sue',200.00) Once new data types are defined, objects of that type can be declaredĪs data members of other classes just like primitives are used. member method of another account objectĪccount cust1 = new Account('Michael',100.00) Īccount cust2 = new Account('Joel',200.00) Account Transfer passes one account object into a posit( amount ) // deposit into other accountĪnd a test program to illustrating composing another class on an existing class. Withdrawal( amount ) // (attempt) withdrawal from this account Public void transferTo( Account other, double amount ) transfers funds OUT of this account To another account Private double balance public Account(String name, double balance) Account class: stripped down version, no setters Once composition is seen and understood theĬontrast between it and inheritance becomes clear. To set up our introduction to inheritance, we introduce another commonly seen OOP technique,Ĭomposition, which looks similar to inheritance. Creating a new type that is aĭescendant of another type is the foundation of the Java class hierarchy. Inheritance is probably the most important OOP concept. OOP II: composition, inheritance, polymorphism, abstract, interfaces, etc

Polymorphism java example shape of objects