Programming and Problem Solving with Java

Knowledge Goals

• To understand the hierarchical nature of classes in object-oriented
  programming


• To understand the concept of inheritance in a class hierarchy


• To recognize the distinction between overriding and hiding in Java


• To understand the concept of polymorphism


• To recognize the difference between deep and shallow copying of objects


• To know and understand the access rules for Java classes


• To know and understand the assignment compatibility rules for objects


• To understand the concept of overloading in Java

Skill Goals

To be able to:

• Identify the interface components of a class in a hierarchy


• Design a derived class to extend an existing class hierarchy


• Implement a derived class using inheritance


• Use the keywords superand thisto disambiguate references


• Create, write, and read files of objects

Inheritance,

Polymorphism,

and Scope

1962
MIT grad student
Steve Russell uses
the DEC computer
PDP-1 to create
Spacewar, the first
video game

1962

The Bell Labs

Telstar

communications

satellite makes

possible the first

transatlantic

television pictures

1963

Joseph Weizenbaum

develops “Eliza,” a

program that acts

like a

psychotherapist by

following a script,

but appears to have

intelligence

1963

The ASCII character

code, largely the

work of Bob Bemer,

is accepted by the

American National

Standards Institute

1963

The Semi-

Automatic Ground

Environment

(SAGE) system, a

real-time computer-

based command

and control defense

system, is fully

deployed

1964

John Kemeny and

Thomas Kurtz

develop the

programming

language BASIC