<%@ page language=”java” contentType=”text/html; charset=UTF-8″ pageEncoding=”UTF-8″%>
<!DOCTYPE html>
<html>
<head>
<title>Display Pop-up on Page Load using JSP</title>
</head>
<body>
<h1>Welcome to My Page</h1>
<script>
window.onload = function() {
var str = “This is a pop-up message!”;
alert(str);
};
</script>
</body>
</html>