Trying to extract password from auto generated email. But it is failing in various combinations

I am trying to extract password from email but unable to do so. The mail when extracted for password will have html chars. when the mail utility is returning the content of email
It should work for all following combinations of passwords

String s = "Y5y>eAy&";
String s2 = "jO3S>Eu1</p>";
String s4 = "jO3SEu1!";
String s5 = "u8P>SIzk";
String s6 = "83Pp>epn";
String s7 = "83Pp>epn";

String s3 = "<p>A temporary password has been created for your user account.</p>" +
                "<p>User Name:  abc+1676532236813@abc.com</p>" +
                "<p>Password: 83Pp>epn</p>" +
                "<p>Log into the platform with the provided URL to complete your user account set up.</p>\n" +
                "<p><a href=\"https://example.com/login\">https://login-dev.example.com/login</a></p>";

I have tried following code but it is not working

int index = s3.indexOf("Password: ");
        String password = "";
//        System.out.println("first is "+password);
        password = s3.substring(index + 11, index + 24);
        System.out.println("index of / is " + password.indexOf("/"));


        if (password.indexOf("/") == 12) {
            password = s3.substring(index + 11, index + 22);
            password = password.replaceAll("(.*?)|(&.*?;)|([ ]{2,})", "");
        } else {
            System.out.println("hello");
            password = s3.substring(index + 11, index + 19);
            password = password.replaceAll("(.*?)|(&.*?;)|([ ]{2,})", "");
        }
        password = password.replace(">", "");
        System.out.println(password);

Can anyone help me here

You can try something like this:

String password = s3.substring(s3.indexOf("<p>Password: ") + 13);
password = password.substring(0, password.indexOf("</p>"));
System.out.println(password);

The code searches for the String <p>Password: , removes everything infront of it and afterwards remove all and including after </p>.

I don´t know if I understood your question correct, but if you want to unescape HTML characters afterwards, you could use the StringEscapeUtils class:

String withCharacters = StringEscapeUtils.unescapeHtml(password);
System.out.println(withCharacters);

Simply add it before the System.out.

Of course, with this the solution, the String before the password has to always be the same.