@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + LATITUDE_FIELD_NUMBER;
    hash =
        (53 * hash)
            + com.google.protobuf.Internal.hashLong(
                java.lang.Double.doubleToLongBits(getLatitude()));
    hash = (37 * hash) + LONGITUDE_FIELD_NUMBER;
    hash =
        (53 * hash)
            + com.google.protobuf.Internal.hashLong(
                java.lang.Double.doubleToLongBits(getLongitude()));
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Longitude Coordinate. Degrees [-180 .. 180]
</pre>

<code>double longitude = 2;</code>

@return The longitude.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/GeoCoordinate.java