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如何使此方法更新循环中的gui(（2个答案）
使用swingworker不断更新gui（2个答案）
昨天关门了。

为清晰起见更新我有两个类example.java（带有gui的主类）taskclassexample.java

如何使example.java调用方法taskclassexample.task，并且在该方法运行时，我需要progress变量中的字符串来更新gui中的textpane。
我希望此任务不会阻止我的主线程，但是该按钮将被禁用，直到任务方法结束，然后它将被重新启用。
谢谢

Example.java

import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JTextPane;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class example extends JFrame {

    private JPanel contentPane;
    private taskClassExample task = new taskClassExample();

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    example frame = new example();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public example() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 648, 417);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        JButton btnNewButton = new JButton("New button");
        btnNewButton.setBounds(180, 196, 273, 66);
        contentPane.add(btnNewButton);

        JTextPane textPane = new JTextPane();
        textPane.setEditable(false);
        textPane.setBounds(198, 10, 238, 176);
        contentPane.add(textPane);

        btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                // disable button after click
                btnNewButton.setEnabled(false);

                //THIS TASK TO RUN IN BACK GROUND
                task.task();
                // the text from progress variable in the above message to be appended to text box
                textPane.setText(task.progress);

                //re-enable button after task has completed
                btnNewButton.setEnabled(true);

            }
        });
    }
}

taskClassExample.java

public class taskClassExample {

    private String progress;

    public taskClassExample() {

    }

    public int task() {
        //this method carrys out a background task an updates progress string throughout
        progress = "Starting";
        System.out.println(progress);
        killTime(5000);
        progress = "hitting the flux capacitor";
        System.out.println(progress);
        killTime(5000);
        progress = "servicing Mr. Fusion";
        System.out.println(progress);
        killTime(5000);
        progress = "tuning Time circuits";
        System.out.println(progress);
        killTime(5000);
        progress = "cleaning Plutonium chamber";
        System.out.println(progress);
        killTime(5000);
        progress = "configuring Roentgen meter";
        System.out.println(progress);
        killTime(5000);
        progress = "finished";
        System.out.println(progress);

        return 1;
    }

    public void killTime(int time) {

        try {
            Thread.sleep(time);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}