algoliasearch/src/main/java/com/algolia/search/saas/Index.java
public JSONObject clearIndex(@Nullable RequestOptions requestOptions) throws AlgoliaException {
        return client.postRequest("/1/indexes/" + encodedIndexName + "/clear", /* urlParameters: */ null, "", false, requestOptions);
    }
public JSONObject clearIndex(@Nullable RequestOptions requestOptions) throws AlgoliaException {
        return client.postRequest("/1/indexes/" + encodedIndexName + "/clear", /* urlParameters: */ null, "", false, requestOptions);
    }
Deletes the index content without removing settings and index specific API keys.

@param requestOptions Request-specific options.
@throws AlgoliaException