public void setVpcId(String vpcId) {
        this.vpcId = vpcId;
    }
<p>
The vpcId that belongs to the Vpc Connection.
</p>

@param vpcId
       <p>
       The vpcId that belongs to the Vpc Connection.
       </p>
aws-java-sdk-kafka/src/main/java/com/amazonaws/services/kafka/model/VpcConnection.java