Two class files created in Apache for 1 Java File

When i compiled VisaTaxDetailsDAOHibernate java file in tomcat there were two class files created named as 1)VisaTaxDetailsDAOHibernate.class 2)VisaTaxDetailsDAOHibernate$3.class Why two files were created can anyone tell me

The $3 one will be a compiled anonymous inner class.

VisaTaxDetailsDAOHibernate has an anonymous inner class defined in it. Right? (More than one?)

That $3 is the class file of that anonymous inner class. Since you did not give it a name ("anonymous") the compiler gives one.

(If you have an inner class (with name), that would be Outer$Inner.class.)