我能不能写个程序来看看YugaByte的YCQL (Cassandra) api中是否存在一个表？

import com.datastax.oss.driver.api.core.CqlSession;
import com.datastax.oss.driver.api.core.CqlResult;
import com.datastax.oss.driver.api.querybuilder.QueryBuilder;
import com.datastax.oss.driver.api.querybuilder.select.Select;

// 建立与YugaByte数据库的连接
CqlSession session = CqlSession.builder()
    .addContactPoint(new InetSocketAddress("your_host", your_port))
    .withLocalDatacenter("your_datacenter")
    .withKeyspace("your_keyspace")
    .withAuthCredentials("your_username", "your_password")
    .build();

// 创建一个Session对象
Session cqlSession = session.getSession();

// 执行查询语句
Select select = QueryBuilder.selectFrom("system_schema", "tables")
    .all()
    .whereColumn("keyspace_name").isEqualTo(literal("your_keyspace"))
    .whereColumn("table_name").isEqualTo(literal("your_table"));
CqlResult result = cqlSession.execute(select.build());

// 处理结果
if (result.one() != null) {
    // 表存在
    System.out.println("表存在！");
} else {
    // 表不存在
    System.out.println("表不存在！");
}