How can I use a JavaBean in another JavaBean?

I create a JavaBean named "dbBean.java"
And I create another JavaBean named "login.java" which want to use the method defined in "dbBean.java".
Could anyone tell me the syntax of using it?

compile the .java files into .class files and then they are usable
from dbBean...
login myLogin = new login();
perhaps you want to use it in some script and not java?

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