Numbers
Sample Program: Java: Min, Max, Average
Text
Sample Program: 1.2 Java Input Dialog Boxes
System.out.println
System.out.print
Format using:
Control Characters: 1.7 Java Format using System.out.print
Number: 1.3 Java Format Numbers
Objects are read and written via Object Streams.
Objects that are to use the Object Stream must implements java.io.Serializable
For details form Oracle, see: http://download.oracle.com/javase/tutorial/essential/io/objectstreams.html