Continuing Java Basics - Intro to decisions

New Terminology

Reference type

A data type in which the variable provides a reference to the object (where the data is stored)

Primitive type

A data type which is built into the language

Programming specific structures and terms

NumberFormat

A class which provides helpful methods for formatting numbers

getCurrencyInstance()

A method in the NumberFormat class which returns a NumberFormat object which has been preformatted for displaying numbers with currency symbols.

DecimalFormat

A class which provides helpful methods for formatting decimal numbers.

if statement

A statement in java which provides branching or doing one of two alternative actions

Class notes

1. Scanner - One problem with input.
   1. InputProblem.java and its correction.
2. Formatting
   1. NumberFormat (see example, you will use decimal format for most things)
   2. DecimalFormat - Reference 3.10 (page 155 - 160)
   3. PayrollV2.java
3. Math class
1. "static" methods
2. require the use of the name of the class, Math
3. cannot instantiate a "Math" object
4. methods provide a number of different math functions.