Variables and Their Definitions

February 3rd, 2016

Slides

Lecture Recording

Lecture Code

• Driver
• Course
• Student
• Examples
• Illegal

Course Class Topics

• Data types (primitive and derived)
• Scope of variables
  
• Count the number of students in a course.

Method Headers

Will it compile?

Primitive Data Types

• int (byte, short, long)
• double (float)
• char
• boolean

Primitive Data Type Variable Naming Conventions

• The variable name should be meaningful.
• The variable name should start with a lowercase letter.
• Other legal symbols include letters, digits, underscores and the dollar sign.

After Class Exercise

Conduct similar experiments to find the largest and smallest numbers represented by byte, short and long.