Principles of Computer Programming (using Java) Review Haidong Xue Summer 2011, at GSU

Content Java foundations Primitive type variables Arrays Control structures Classes and objects Where you are

Java foundations What is a Java program? – classes, main, packages How to execute a Java program? – JVM, JDK, JRE Expressions – int, double, boolean, and the operators Member variables and member methods – static, public, private, protected

Java foundations Parameters – What is it? – What is passed? Comments – //, /* … */ Identifiers Conventions – Naming, format

Java foundations Keywords – boolean, break, case, catch, char, class, continue, default, do, double, else, extends, final, for, if, import, int, new, package, private, protected, public, return, static, super, switch, this, throw, try, void, while

Primitive type variables int double boolean char

Arrays What is a array? How to create a array? What is an array variable? How to access a array?

Control structures Branches – if, switch – break Loops – while, do-while, for – break, continues – Nested loops Exceptions – try, throw, catch

Control structures Exceptions – Type of exceptions – try, throw, catch

Classes and objects How to declare classes? How to create objects? Object and object variable Inheritance – How to specify a superclass – What is the default superclass – What are not shared by subclass? – How to call a constructor of the superclass?

Classes and objects Overriding – Why we need overriding? – How to override? Polymorphism – An object of a subclass IS AN object of superclass – When using superclass object variable pointed to an object of subclass and calling a method, the overridden method will be called.

Where we are in CS What we learnt – Basic rules of a object oriented programming language – Good news: all the OOP language are similar, like C#, C++ and so on.

Software Hardware Compiler Machine Language Data Structure Operating System Principles of CompilersAutomata Algorithms Software Engineering Computer Architecture Computer Composition Microchip Interfaces VLSI Design Programming Language Computer Database Web programming Signal processing Applications Data mining Network Security Wireless Network Graphics AIRobotics