run problems

[jackbauerctu]

Hi,

I have a java file that have a runtime error. Could someone see what the problem is and how to fix this?

Errror: Exeption in thread "main" java.lang.NoClassDefFoundError: DBTest
Could not find the main class: DBTest. Program will exit

File can be found in the appendix.(change the extention from .txt to .java) the code is to long to post in the forum...

[wy125]

make sure you create the directory structure of the package for your program: Your class files must reside in jra1/sqltest.

Then you would run it as: jra1.sqltest.DBTest from one level up from the jra1 directory.

[ComputerJy]

Actually you should run javac (Java compiler) first to compile your class.

And unless you're using Linux or Mac OS, this code was generated by an IDE (Probably eclipse). IDEs help you run your code

[oceanebelle]

And you'd need the jar files for the jdbc drivers that the code tries to load. Make sure they are in your classpath when compiling or running.

com.mysql.jdbc.Driver
org.postgresql.Driver