我正在尝试制作一个程序，它接收一个数字，并将其添加到一个列表中，然后用按钮打印出列表，但每次运行程序时，输出都是错误的，例如，当我键入3时，它会输出“ids”=[333]有人能帮我吗，请。

ArrayList<Integer> list = new ArrayList<Integer>(); //  store integers
        result.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                try {
                    int temp = Integer.parseInt(input.getText()); // get the input
                    list.add(temp); // add it to the list
                    JOptionPane.showMessageDialog(null, "The ID has been added");
                } catch (NumberFormatException ex) {
                    JOptionPane.showMessageDialog(null, "The number you entered is not a valid Integer", "Invalid Input",
                            JOptionPane.WARNING_MESSAGE); // message to show if the input is invalid
                }
            }
        });
        show.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                try {
                    for(int i=0;i<list.size();i++){ // print out the list
                        System.out.println("IDs : "+list.toString());
                    }