public Acceptor withAccountId(String accountId) {
        setAccountId(accountId);
        return this;
    }
<p>
The AWS account ID of the acceptor.
</p>

@param accountId
       The AWS account ID of the acceptor.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-marketplaceagreement/src/main/java/com/amazonaws/services/marketplaceagreement/model/Acceptor.java