public void setAccountId(String accountId) {
        this.accountId = accountId;
    }
<p>
The identifier for the AWS account that is assigned to the user.
</p>

@param accountId
       The identifier for the AWS account that is assigned to the user.
aws-java-sdk-sso/src/main/java/com/amazonaws/services/sso/model/ListAccountRolesRequest.java