The Select One or More Libraries dialog box allows you to choose the libraries listed on the Required Libraries tab of the Paths page (Project Properties dialog box). To display this dialog box,
The Select A JDK dialog box allows you to select a JDK which is then displayed on the Paths page (Project Properties dialog box). The JDK versions you define must be installed locally. To display this dialog box,
In the Select One Or More Libraries dialog box, it displays the New Library wizard where you set up a library to add to the Libraries list.
In the Select A JDK dialog box, it displays the New JDK wizard where you set up a JDK to add to the JDK list. This is a feature of JBuilder Professional and Enterprise.
Tools|Configure Libraries
Tools|Configure JDKs
"Creating and managing projects" in Building Applications with JBuilder for information on configuring JDKs and libraries.