下面JBUILDER的HELP,以后这种问题多看看HELP:
If your component is a JavaBean, you can add it to the component palette.
If the component is to be shared between projects, it should be added to
a library that is on the CLASSPATH in each project where it will be used.
To place the component on the component palette,
1.Choose Tools|Configure Palette, or right-click a palette tab
and choose Properties to display the Palette Properties dialog box.
2. Select the Pages tab. In the Pages column, select the palette page
on which you want your component to appear, or click the Add button to
create a new page.
3.Click the Add Components tab to select a class or package name.
