在JPasswordField中显示密码，而不是将0设置为echo char [英] Displaying the password in a JPasswordField rather than setting 0 as an echo char

问题描述

如何显示JPasswordField的文本而不是将0设置为echo char？

How do I display the text of a JPasswordField rather than set 0 as an echo char?

Java Docs说：

Java Docs says:

设置为0的值表明您希望看到的文字，因为它是类型化的，类似于标准JTextField的行为。

Setting a value of 0 indicates that you wish to see the text as it is typed, similar to the behavior of a standard JTextField.

以下结果导致不兼容类型错误

The following results in an Incompatible types error

outField.setEchoChar(0);

wheras

outField.setEchoChar('0');

只需设置0作为回显字符（每个数字显示0）。

simply sets 0 as the echo char (displays 0s for every digit).

在JTextField上使用JPasswordField的原因是我想更改echo char并用其他方法隐藏密码。

The reason for using JPasswordField over JTextField is that I want to change the echo char and hide the password with another method.

谢谢！

推荐答案

这样做：

outField.setEchoChar((char)0);

如果你这样做：

outField.setEchoChar(0);

然后0是整数，而不是char，并且该方法需要char。

then 0 is an integer, not a char, and the method requires a char.

如果你这样做：

outField.setEchoChar('0');

然后'0'相当于（char）48。

then '0' is equivalent to (char)48.

这篇关于在JPasswordField中显示密码，而不是将0设置为echo char的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！