How to create a database sowtware in java

Question

which thing is required to develope a database other than jdk1.6 and also which other files are required for it plz help
i am not understanding exactly what is required

Answer 1

which thing is required to develope a database other than jdk1.6Nothing. JDK 1.6 provides you with the development tools, JVM, and a pure Java database that can be embedded into your application. You will need to put the JavaDB JAR file into your class path. If you don't want to run JavaDB in embedded mode you will also need to start it up as a separate process and set the connection information.
and also which other files are required for it plz helpIf you decide you want to use some other database product you will need to install that (as already suggested, MySQL might be a good choice for you) and then you will need to acquire the appropriate JDBC driver and put that in your classpath.
i am not understanding exactly what is requiredAre you thoroughly familiar with Java already? Do you completely understand the behaviour of the classpath, and the difference between files, classes, packages, directories, objects, and references? If you don't, learn the basics first or you will be hopelessly confused.
If you do understand the basics (and we'd better not hear questions about class not found exceptions if so) then as always you should read the excellent Sun tutorials on the subject:
[http://java.sun.com/docs/books/tutorial/jdbc/index.html|http://java.sun.com/docs/books/tutorial/jdbc/index.html]