如何将信息发送到文件？

Question

如何将数据保存到文件中？

当我点击按钮时会发生这种情况。

public void actionPerformed(ActionEvent f) {

        if (f.getActionCommand() == Action.BUTTON1.name()){

            JButton knapp = (JButton) f.getSource();
            knapp.setIcon(new ImageIcon(upptagen));
            boka--;

        }
    }

有117个按钮，当我点击一个特定的按钮时，我希望按钮存储在一个文件中，以便下次运行main时我能记住它。

空文件位于“src / assets / data”

Answer 1

I think you are going down the wrong path. Most likely, you are not interested in "storing" whole buttons.

Instead, your application allows the user to change specific properties of a button.

Meaning: you could read/write ordinary Java Properties to solve that problem. On startup, you read that property file and adapt your buttons according to the information in that file; and when the user asks for any changes, you update the properties; and write them back into the property file on your drive.