java - 如何从 JButton 的操作中获取 JTextField 中的字符串？

Question

一段时间以来，我一直在努力解决这个问题，在网上搜索，最后决定加入只是为了解决这个问题。所以我的困境是这样的。

addActionListner(new ActionListener(){
public void actionPerformed(ActionEvent e)
{
    //some code
}
});

有些代码实际上可以从 JTextField 中提取（为了参数，让我们称它为 myText）？如果可能的话，我怎么能调用 ActionListner？那么当单击按钮时，它实际上执行了 myText 中 ActionListener 的 actionPeformed 吗？

Answer 1

Add the action listener to the button and then retrieve myText's contents in the button's action listener. Hope it helps.

Assuming your button is named something like "myButton":

String someString = "";

myButton.addActionListner(new ActionListener(){
    public void actionPerformed(ActionEvent e) {
       //this will give you myText's contents. Do what you will with them.
       someString = myText.getText();
    }
});

Now you should be able to do whatever you want with the contents.