JAVA多线程程序ProgressBar2

题目简介：

思路分析：与上一篇：JAVA多线程程序ProgressBar类似，本篇避免过于冗杂，所以在此没有给出。

实验代码：

import java.awt.EventQueue;

import javax.swing.JFrame;

import java.awt.BorderLayout;

import javax.swing.JLabel;

import javax.swing.SwingConstants;

import javax.swing.JPanel;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.rmi.activation.ActivationInstantiator;

import javax.swing.JTextArea;

import javax.swing.JProgressBar;

import java.awt.Font;

import javax.swing.JButton;

/**

 * @author 李祖林

 *

 */

public class SumFrame implements ActionListener{

    private JFrame frame;

    JTextArea textA,textB;

    JButton button;

    JProgressBar progressBar;

    public static void main(String[] args) {

        SumFrame sumFrame = new SumFrame();

    }

    public SumFrame() {

        frame = new JFrame();

        frame.setBounds(100, 100, 1043, 210);

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.getContentPane().setLayout(new BorderLayout(0, 0));

        JLabel label = new JLabel("\u591A\u7EBF\u7A0B 20\u4E2A\u968F\u673A\u6574\u6570\u7684\u548C");

        label.setFont(new Font("宋体", Font.BOLD, 18));

        label.setHorizontalAlignment(SwingConstants.CENTER);

        frame.getContentPane().add(label, BorderLayout.NORTH);

        JPanel panel = new JPanel();

        frame.getContentPane().add(panel, BorderLayout.CENTER);

        panel.setLayout(new GridLayout(3, 2, 0, 0));

        JLabel label_1 = new JLabel("\u8BA1\u7B97\u7B49\u5F0F\r\n");

        label_1.setFont(new Font("宋体", Font.BOLD, 18));

        label_1.setHorizontalAlignment(SwingConstants.CENTER);

        panel.add(label_1);

        textA = new JTextArea();

        textA.setFont(new Font("Courier New", Font.BOLD, 10));

        panel.add(textA);

        JLabel label_2 = new JLabel("\u8FDB\u5EA6\u6761");

        label_2.setFont(new Font("宋体", Font.BOLD, 18));

        label_2.setHorizontalAlignment(SwingConstants.CENTER);

        panel.add(label_2);

        progressBar = new JProgressBar();

        progressBar.setMaximum(20);

        panel.add(progressBar);

        JLabel label_3 = new JLabel("\u8BA1\u7B97\u7ED3\u679C");

        label_3.setFont(new Font("宋体", Font.BOLD, 18));

        label_3.setHorizontalAlignment(SwingConstants.CENTER);

        panel.add(label_3);

        textB = new JTextArea();

        textB.setFont(new Font("Courier New", Font.BOLD, 15));

        panel.add(textB);

        JPanel panel_1 = new JPanel();

        frame.getContentPane().add(panel_1, BorderLayout.SOUTH);

        button = new JButton("\u5F00\u59CB");

        button.setFont(new Font("宋体", Font.BOLD, 18));

        panel_1.add(button);button.addActionListener(this);

        frame.setVisible(true);

    }

    public void actionPerformed(ActionEvent e) {

        SumThread sumThread = new SumThread();

        ReadThread readThread = new ReadThread(this);

        Thread thread = new Thread(readThread);

        thread.start();

    }

}

SumFrame

/**

 * @author 李祖林

 *

 */

public class ReadThread extends Thread {

    SumFrame sumFrame;

    ReadThread(){}

    ReadThread(SumFrame sumFrame){

        this.sumFrame = sumFrame;

    }

    public void run(){

        while(true){

            sumFrame.textA.setText(SumThread.string);

            sumFrame.progressBar.setValue(SumThread.n);

            sumFrame.textB.setText(String.valueOf(SumThread.sum));

            try {

                Thread.sleep(1000);

            } catch (InterruptedException e) {

                System.err.println("读取线程ReadThread发生错误！");

                e.printStackTrace();

            }

        }

    }

}

ReadThread

/**

 * @author 李祖林

 *

 */

public class SumThread extends Thread{

    static double sum = 0;

    static int n = 0;

    static String string = "sum = 0;\nsum = 0";

    int tmp;

    SumThread(){

        Thread thread = new Thread(this);

        thread.start();

    }

    public void run(){

        while(n<20){

            n++;

            tmp = (int)(Math.random()*1000);

            sum += tmp;

            string = string + "+" + tmp;

            try {

                Thread.sleep((int)Math.random()*600 + 300);

            } catch (InterruptedException e) {

                System.err.println("计算线程发生错误！");

                e.printStackTrace();

            }

        }

    }

}

SumThread

实验结果：

巴特西

JAVA多线程程序ProgressBar2

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