import com.vividsolutions.jts.geom.*; import com.vividsolutions.jts.io.*; public class JTSExample { public static void main(String[] args) throws ParseException { GeometryFactory gf = new GeometryFactory(); WKTReader reader = new WKTReader(gf); Polygon polygon1 = (Polygon) reader.read("POLYGON ((0 0, 5 0, 5 5, 0 5, 0 0))"); Polygon polygon2 = (Polygon) reader.read("POLYGON ((3 3, 8 3, 8 8, 3 8, 3 3))"); if (polygon1.intersects(polygon2)) { } else { } } }