Included with the GR SDK are three Java API sample applications demonstrating the three routing capabilities (GetRoute, GetTravelBoundary, and GetRouteCostMatrix), and one REST API sample application demonstrating the GetRoute capability. These samples all have executable files, as well as sample data included (Washington DC dataset).
Refer the readme.txt file for detailed instructions on how to setup and run the samples. The readme.txt is located at:
install_dir\samples.
The source for the samples are located at:
install_dir\samples\src\com\pb\routing\gra\samples\.