在 Java 中输入而不按 Enter

Question

I want to take any input in Java without pressing the enter key. Actually I want to make a password input program, so that as soon as the user enter any character, I can clear the screen and replace the characters with an equal number of asterisks ("*"), like the typical password entries made anywhere in the web. Most importantly, I would like to do the same in the Java Terminal Window, not by using those applet methods. Please tell me if i would have to supply more details. I am using BlueJ.

Thank you, Mayank.

Answer 1

You may want to have a look at the Console 's readPassword(...) methods (needs Java 6+).

Or, when using Java 5 (or less), have a look at this article: Password Masking in the Java Programming Language , especially the paragraph Command-Line Input Masking .

Answer 2

这是有关如何实现所需的完整文章： http : //java.sun.com/developer/technicalArticles/Security/pwordmask/

Answer 3

Oracle有一个很棒的有关Key Listener的教程，它可以帮助您了解要去的地方： https : //docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html