<SUBMISSION>
<ACCESSION-NUMBER>0001140361-12-042123
<TYPE>4/A
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20120919
<FILING-DATE>20121001
<DATE-OF-FILING-DATE-CHANGE>20121001
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ALEXANDERS J CORP
<CIK>0000103884
<ASSIGNED-SIC>5812
<IRS-NUMBER>620854056
<STATE-OF-INCORPORATION>TN
<FISCAL-YEAR-END>0112
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>3401 WEST END AVE
<STREET2>P O BOX 24300
<CITY>NASHVILLE
<STATE>TN
<ZIP>37203
<PHONE>6152691900
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>3401 WEST END AVE
<STREET2>SUITE 260
<CITY>NASHVILLE
<STATE>TN
<ZIP>37203
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>VOLUNTEER CAPITAL CORP / TN /
<DATE-CHANGED>19920703
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>WINNERS CORP
<DATE-CHANGED>19890910
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>VOLUNTEER CAPITAL CORP
<DATE-CHANGED>19820520
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>DUNCAN E TOWNES
<CIK>0000900371
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4/A
<ACT>34
<FILE-NUMBER>001-08766
<FILM-NUMBER>121119724
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>30 BURTON HILLS BLVD
<STREET2>SUITE 100
<CITY>NASHVILLE
<STATE>TN
<ZIP>37215
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2012-09-19</periodOfReport>

    <dateOfOriginalSubmission>2012-09-21</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000103884</issuerCik>
        <issuerName>ALEXANDERS J CORP</issuerName>
        <issuerTradingSymbol>JAX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000900371</rptOwnerCik>
            <rptOwnerName>DUNCAN E TOWNES</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SOLIDUS COMPANY, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>4015 HILLSBORO PIKE, SUITE 214</rptOwnerStreet2>
            <rptOwnerCity>NASHVILLE</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37215</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2012-09-19</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>U</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>164266</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 Amendment is being filed to correct the number of shares tendered by Solidus Company, L.P., a Tennessee limited partnership (&quot;Solidus&quot;), in the tender offer by New Athena Merger Sub, Inc., a Tennessee corporation and an indirect, wholly owned subsidiary of Fidelity National Financial, Inc., a Delaware corporation, and to restate the amount of securities beneficially owned by the reporting person following the tender offer.</footnote>
        <footnote id="F2">Represents the shares held directly by Solidus.  Mr. Duncan is the Chief Executive Officer of Solidus General Partner, LLC, which is the general partner of Solidus.  Mr. Duncan disclaims beneficial ownership of any such shares that to not reflect his proportionate interest in Solidus.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Mark A. Parkey, Attorney in Fact</signatureName>
        <signatureDate>2012-10-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
