Inheritance, polymorphism and interfaces: The three main object-oriented features of Java, inheritance, polymorphism and interfaces are important features of Java programming. Exception handling: Java ...

The Java inheritance mechanism allows a flawed student method to be overridden with a known good method so the evaluation may proceed. The regular expressions allow the student's program output to be ...

About In this assignment, you are going to write four related classes (plus the main () program), RailroadCar, TankCar, BoxCar, and RefrigeratorCar. Using class inheritance and polymorphism, you are ...