如何通过在后台运行的Java程序从用户获取输入？ （SetWindowsHookEx）

Question

当程序在后台运行时，是否有任何方法可以从用户那里获取输入？

Answer 1

You can easily pop up a GUI asking for input. The following prompts the user for a string:

String myString = JOptionPane.showInputDialog("Input some string");

You will need to import javax.swing.JOptionPane

The javadoc is at http://docs.oracle.com/javase/7/docs/api/javax/swing/JOptionPane.html . Note that JOptionPane.showInputDialog() will return null if the user cancels out of the dialog.