Validating number in java

Otherwise your application needs to provide this function.

The problem here is that you're making the password visible in the browser, browser cache, proxy, etc.Consider the following: If you are using a supported browser you can use the form below to test the regular expression: If you want to restrict the password to ONLY letters and numbers (no spaces or other characters) then only a slight change is required.Instead of using is shorthand for 'any letter, number or the underscore character'.If the purpose of registration is to confirm that the person exists, and that they have supplied a valid email address, then as part of the registration processe you a should either email them a random password or a confirmation token rather than letting them choose their own password and use it immediately.The code presented below would then be used for letting the user change their password.

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