package scope

[Mathew Lee]

>>>A file can only contain one outer public class. If you attempt to create a file with more than one public class the compiler will complain with a specific error. A file can contain multiple non public classes, but bear in mind that this will produce separate .class output files for each class



I was reading above lines from link
http://www.jchq.net/certkey/0401certkey.htm

did not understand it.If you have more than one class in a file say A, B, C, D classes out of which D is public and rest 3 ie A, B, C without any access modifier. Is that is legal. What it means about A, B, C classes as they have default scope now. Who all can see A, B, C

[Campbell Ritchie]

Java™ Language Specification section about access. Look up default access, which many people call package-private