Java Tutorial/JSP/Form Data Validation

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Validate Data Before Submit using Regular Expressions

index.jsp


   <source lang="java">

<HTML>

   <HEAD>
       <TITLE>Verifying User Data</TITLE>
       <SCRIPT LANGUAGE="JavaScript">
       </SCRIPT>
   </HEAD>

   <BODY>

Verifying User Data

       <FORM NAME="form1" ACTION="basic.jsp" METHOD="POST" ONSUBMIT="return checker()">
           Please enter a date:
           <INPUT TYPE="TEXT" NAME="text1">
           <INPUT TYPE="SUBMIT" value="Submit">
       </FORM>
   </BODY>

<HTML></source>