# Build Tab

The Build tab contains the information required to compile the project. If you change information in this tab, click the Apply button to enter the changes before moving to another tab.

Javac options
  Compiler options you wish to specify. Clicking the Options button opens a dialog box in which you can turn compiler options on and off. For more information on compiler options, see the `javac` compiler documentation.

Root directory of class hierarchy
  The path to the root directory of the class hierarchy.

Additional classpaths
  Additional paths to add to the default `CLASSPATH` environment variable. To view the default entries, click the View Classpath button. To add more than one path, use a semicolon separator on Microsoft Windows and NT systems, and use a colon separator on Solaris systems.

See also:

  Editing Project Attributes