public void setTopics(java.util.Collection<Topic> topics) {
        if (topics == null) {
            this.topics = null;
            return;
        }

        this.topics = new com.amazonaws.internal.SdkInternalList<Topic>(topics);
    }
<p>
A list of topic ARNs.
</p>

@param topics
       A list of topic ARNs.
aws-java-sdk-sns/src/main/java/com/amazonaws/services/sns/model/ListTopicsResult.java