public void setVpcId(String vpcId) {
        this.vpcId = vpcId;
    }
<p>
The unique identifier of the VPC where the firewall is in use.
</p>

@param vpcId
       The unique identifier of the VPC where the firewall is in use.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/Firewall.java