可視化窗口是大部分游戲的常態，今天我們就來了解下如何編寫進度條窗口，快跟小編一起看看吧。

一、在包右擊new->other->WindowBuilder->JFrame->name叫Guithreadpackage?guithread;

import?java.awt.BorderLayout;

import?java.awt.EventQueue;

import?javax.swing.JFrame;

import?javax.swing.JPanel;

import?javax.swing.border.EmptyBorder;

import?java.awt.GridLayout;

import?javax.swing.JProgressBar;

import?javax.swing.JButton;

import?java.awt.event.ActionListener;

import?java.awt.event.ActionEvent;

public?class?GuiThread?extends?JFrame

{

private?JPanel?contentPane;

/**??*?Launch?the?application.??*/

public?static?void?main(String[]?args)

{

EventQueue.invokeLater(new?Runnable()

{

public?void?run()

{

try

{

GuiThread?frame?=?new?GuiThread();

frame.setVisible(true);

}

catch?(Exception?e)

{

e.printStackTrace();

}

}

});

}

/**??*?Create?the?frame.??*/

public?GuiThread()

{

setTitle("線程進度條");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setBounds(100,?100,?450,?300);

contentPane?=?new?JPanel();

contentPane.setBorder(new?EmptyBorder(5,?5,?5,?5));

setContentPane(contentPane);

contentPane.setLayout(new?GridLayout(4,?1,?0,?0));

JProgressBar?pb1?=?new?JProgressBar();

contentPane.add(pb1);

JProgressBar?pb2?=?new?JProgressBar();

contentPane.add(pb2);

JButton?btnNewButton?=?new?JButton("啟動");

btnNewButton.addActionListener(new?ActionListener()

{

public?void?actionPerformed(ActionEvent?e)

{

PdThread.flag?=?true;

PdThread?pt1?=?new?PdThread(pb1);

pt1.start();

PdThread?pt2?=?new?PdThread(pb2);

pt2

.start();

}

});

contentPane.add(btnNewButton);

JButton?btnNewButton_1?=?new?JButton("暫停");

btnNewButton_1.addActionListener(new?ActionListener()

{

public?void?actionPerformed(ActionEvent?e)

{

PdThread.flag?=?false;

}

});

contentPane.add(btnNewButton_1);

}

}

二、新建PdThread類 ，Superclass寫java.lang.threadpackage?guithread;

import?javax.sound.midi.Track;

import?javax.swing.JProgressBar;

public?class?PdThread?extends?Thread

{

static?boolean?flag?=?true;?//全局開關?JProgressBar?jpb;

public?PdThread(JProgressBar?jpb)

{

this.jpb?=?jpb;

}

public?void?run()

{

while?(jpb.getValue()?

{

try

{

Thread.sleep((long(Math.random()?*?600));

}

catch?(InterruptedException?e)

{?//?TODO?Auto-generated?catch?block?e.printStackTrace();

}

if?(PdThread.flag)

{

jpb.setValue(jpb.getValue()?+?1);

}

else

{

Thread.yield();?//暫停?this.stop();//終止當前進程

}

}

}

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