Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
345 views
in Technique[技术] by (71.8m points)

java - How can I find out which button was clicked?

I've got my buttons working right, and I'm a listener to each button like this:

for(int i = 0; i <= 25; ++i) {
    buttons[i] = new Button(Character.toString(letters[i]));
    buttons[i].addActionListener(actionListener);
    panel1.add(buttons[i]);
}

Here as you can see the listener is called, and I want to find out which button I'm clicking. Is there a way to do that?

ActionListener actionListener = new ActionListener() {
    public void actionPerformed(ActionEvent actionEvent) {
        System.out.println(actionEvent.getSource());
    }
};

I need some way to find the button in the array.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

try this

ActionListener actionListener = new ActionListener() {
    public void actionPerformed(ActionEvent actionEvent) {
        System.out.println(actionEvent.getActionCommand());
    }
};

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...