Two geometries touch if the intersection of their interiors is empty, but the intersection of the two geometries is not empty.
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Example 1: Does Geometry A touch Geometry B?
static boolean geometryTouches(Geometry geometryA, Geometry geometryB, SpatialReference sr)
{
boolean touches = OperatorTouches.local().execute(geometryA, geometryB, sr, null);
return touches;
}