在 JTextFIeld 中隐藏/显示密码（Java Swing）
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Hide/Show Password in a JTextFIeld (Java Swing)
提问by Manas Bajaj
So I've been working on a Password Strength Checker and the way it works is that the user enters some random text into a textfield and then instantaneous visual feedback (breakdown of points) is displayed. I've also added a checkbox, which on being selected, should hide the password i.e. replace all the chars with asterisks, while preserving the actual text input by the user. A document listener is being used to keep track of changes inside the textfield. (each char on entry gets analyzed and then scored)
所以我一直在研究密码强度检查器，它的工作方式是用户在文本字段中输入一些随机文本，然后显示即时视觉反馈（点细分）。我还添加了一个复选框，选中时应隐藏密码，即用星号替换所有字符，同时保留用户输入的实际文本。文档侦听器用于跟踪文本字段内的更改。（条目中的每个字符都会被分析然后评分）
So, my question is, how exactly do I mask the user input with asterisks preserving its original value?
所以，我的问题是，如何用星号屏蔽用户输入以保留其原始值？
Here's what the GUI looks like:
这是 GUI 的样子：
http://speedcap.net/sharing/screen.php?id=files/51/2f/512f9abb3f92a25add7c593e9d80e9e4.png
http://speedcap.net/sharing/screen.php?id=files/51/2f/512f9abb3f92a25add7c593e9d80e9e4.png
采纳答案by Sage
How exactly do I mask the user input with asterisks preserving its original value?
如何使用星号屏蔽用户输入以保留其原始值？
Use the JPasswordFieldwhich has nice function jPasswordField.getPassword();to get the password as char[]to work with.
使用JPasswordField具有良好功能jPasswordField.getPassword();的密码来获取密码char[]。
- Use
jPasswordField1.setEchoChar('*')to mask the password characters with*. - If you wish to see the value you are inserting use
jPasswordField1.setEchoChar((char)0);Setting a value of0indicates that you wish to see the text as it is typed, similar to the behavior of a standardJTextField.
- 用于
jPasswordField1.setEchoChar('*')用 屏蔽密码字符*。 - 如果您希望看到您正在插入的值，请使用
jPasswordField1.setEchoChar((char)0);设置值0表示您希望在键入时看到文本，类似于标准JTextField.
Tutorial and Reference:
教程和参考：
回答by Mahdani Ismail
ok thanks for tutorialnya,
好的，谢谢tutorialnya，
and ex,
和前，
action chechbox / double click
动作复选框/双击
private void lihatActionPerformed(java.awt.event.ActionEvent evt) {
if (lihat.isSelected()) {
password.setEchoChar((char)0); //password = JPasswordField
} else {
password.setEchoChar('*');
}
}
回答by Muhammad Aasharib Nawshad
Use Password Field Instead of using textfield
使用密码字段而不是使用文本字段
