小编can*_*tas的帖子

我不是新手,也是教授.在Java上.我正在尝试将progressBar添加到我的应用程序中,该应用程序使用isReachable()方法将ping发送到给定的ip范围.我该如何添加？我不知道任务和线程使用情况.我阅读了有关progressBar的java文档,但我无法添加.这是我的代码

final JButton btnScan = new JButton("Scan");
btnScan.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent arg0) {
        Runtime rt = Runtime.getRuntime();
        String lastIpCheck = " "; 
        String ip = textField.getText();
        String lastIp = textField_1.getText();
        String parsedOutput=  " ";
        InetAddress inet;
        boolean reachable;

        while(!(lastIpCheck.equalsIgnoreCase(lastIp))) {
            try {
                inet = InetAddress.getByName(ip);
                reachable = inet.isReachable(2500);
                String output=null;
                lastIpCheck = f.nextIpAddress(ip);

                if(reachable) {
                    model.addElement(ip);
                }

                ip = lastIpCheck;

            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    } …