Validating text field

By default, the horizontal text alignment follows the natural alignment of the text, for example text that is read from left to right will be aligned to the left.The possible alignment values are: Sets an input mask on the Text Field, restricting the allowable text inputs.Typically, when you are validating user input in Java, you will want to check for both null and empty string values.To check String objects for equality, you must use the .equals() method (not the == operator).By default, the Text field type accepts any characters.

Using Custom validation, you could enforce just about any data definition you can think of, such as a bank routing number, a single digit, a US currency value, a time value in 24-hour format, password criteria, or a valid credit card number. @#$%]) restrict passwords to a length of 8 to 20 alphanumeric characters and select special characters.

Of course, you can replace the validation action to whatever you need.

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