jformattedtextfield

问题 I need to put a masked formatted text field in my jframe, i put it like this MaskFormatter mask = new MaskFormatter("########/##"); JFormattedTextField txtName = new JFormattedTextField(mask); but when I run the program the textField is empty and it doesn't save it on data base 回答1: From MaskFormatter documentation we can see that # Any valid number, uses Character.isDigit . If you want to accept text (letters and digits) use A Any character or number ( Character.isLetter or Character.isDigit

问题 Since someone marked my other question (NumberFormat parse not strict enough) as duplicate by mistake and did not remove the duplicate label although I pointed out that it was different, I will post the question again together with my solution. Maybe it is helpful to someone. Here we go: I have a JFormattedTextField with a NumberFormat with Locale.US. So the decimal separator is the point and the grouping separator is the comma. Now I type the string "1,23" in this text field and move the

问题 I would like to "clear" a JFormattedTextField programmatically but if I simply call txtAny.setText("") it is doesn't work cause textfield's regex pattern in my case: private final String FORMATTER_STRING_FLOAT = "[\\p{Digit}\\p{Cntrl}]{1,32}(\\.[\\p{Digit}\\p{Cntrl}]{0,2})?"; that requires at least one digit. So my question is: how can I obtain a regex pattern of a JFormattedTextField for at least further manual partial processing? 回答1: Call setText(anyValidString) rather than setText("") 来源：

问题 I've spent a lot of time reading Java docs and related questions but am still unable to understand exactly what I need to do to accomplish what I want. I know that I will be using a MaskFormatter (because I want / / always displayed), SimpleDateFormater and DocumentListeners so I spent most of my time studying those but can't figure out how to use everything together. I have a JFormattedTextField that uses a MaskFormatter("##/##/####") which I want to end up being stored as a Date in the

问题 I am newbie to Java programming. I have a document filter that only allow numeric values and decimals with "." in a JFormattedTextField . Now I want to implement a method within that filter, to only allow a maximum and minimum value , like I want whatever the value of number entered, it must be between [0-1], otherwise it should not accept whatever is typed. Now I don't want to use JSpinner , because from 0 to 1 there is millions of Decimals eg: 0.0001, 0.0012 ... This is my documentFilter

问题 My current Java project requires me to work with dates and through my research and tinkering around I discovered the setLenient() method is defaulted to true . When I set it to false I begin to have problems with my code. I have a JFormattedTextField intialized with a SimpleDateFormat . For my project, I need to have / placeholders always present so using the answer to this question, I was able to install / s as place holders in the form of MM/dd/yyyy When the SimpleDateFormat is set to

问题 I have a JTextField to accommodate an ip address with 3 dots. 255.120.320.123. When the user enters this IP address, I want to mask it like . . . I was referring this thread, How to custom formatter JFormattedTextField to display an IP address? jFormattedTextField did not work for me. Can anyone give me an example with jFormattedTextField with 3 dots visible? Or do I need to use 4 jFomattedTextField / JPasswordField as mentioned in this thread? Thanks in advance. 回答1: Seems you need to use

问题 LINK TO GUI IMAGE HERE -------> http://imgur.com/uPD0K5S public class MainMenu extends javax.swing.JFrame { public MainMenu() { initComponents(); cmbRoomNumber.setEnabled(false); jPanel1.setVisible(false); btnBook.setEnabled(false); //SETTING COMBOBOXES TO NONE cmbPhotoId.setSelectedIndex(-1); cmbStayDuration.setSelectedIndex(-1); //LABELS VALIDATION jlblNameVer.setVisible(false); //SETTING DATE TODAY Date now = new Date(); //Set date format as you want SimpleDateFormat sf = new

问题 I need to format jformattedtextfeild for only add double/float values with two decimal places in runtime. ex: 15600.00 Please help me on this. Thank you. 回答1: Here's an example on how to do it: NumberFormat format = DecimalFormat.getInstance(); format.setMinimumFractionDigits(2); format.setMaximumFractionDigits(2); format.setRoundingMode(RoundingMode.HALF_UP); JFormattedTextField myTwoDecimalTextfield = new JFormattedTextField(format); myTwoDecimalTextfield.setValue(new Float(3.14)); 来源：

问题 here is an exemple of code : private JFormattedTextField jftf2 = new JFormattedTextField(); try{ MaskFormatter mask = new MaskFormatter("###-####"); mask.install(jftf2); }catch(ParseException e){e.printStackTrace();} when I execute it, it shows 3 spaces then '-' then 4 spaces,i want to know how not to have those spaces, a simple empty textfield that receives no more than the characters i write. i know that there is a method mask.setPlaceholderCharacter(' '); that changes the space to another