JProgressBar进度条

package rename;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;

public class PgbDemo extends JFrame {

/**
*
*/
private static final long serialVersionUID = 1L;
private JProgressBar pgb;
private JButton but;
private JPanel pan;

public PgbDemo() {
super("JProgressBar Demo");
initComponents();
}

private void initComponents() {
pan = new JPanel();
pan.setLayout(new BorderLayout());
pgb = new JProgressBar();
pgb.setMinimum(0);
pgb.setMaximum(100);
pgb.setValue(0);
pgb.setStringPainted(true);
pgb.setBorderPainted(true);
pgb.setBackground(Color.yellow);
pan.add(pgb, BorderLayout.CENTER);

but = new JButton("Start");
but.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
//run task
but.setEnabled(false);
new ATask().start();
}
});
pan.add(but, BorderLayout.EAST);

this.getContentPane().add(pan);
this.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
}

public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
PgbDemo frame = new PgbDemo();
frame.setLocationRelativeTo(null);
frame.setSize(500, 100);
frame.setVisible(true);
}
});
}

class ATask extends Thread {
public void run() {
System.out.println(SwingUtilities.isEventDispatchThread());
for (int i = 0; i < 130; i++) {
final int percents = (int) ((float) i / 130.0 * 100.0) + 1;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
PgbDemo.this.pgb.setValue(percents);
}
});
try {
Thread.sleep(100);
} catch (InterruptedException ex) {
Logger.getLogger(PgbDemo.class.getName()).log(Level.SEVERE, null, ex);
}
}
SwingUtilities.invokeLater(new Runnable() {
public void run() {
PgbDemo.this.but.setEnabled(true);
}
});
}
}
}

标签：pgb,PgbDemo,JProgressBar,进度条,void,new,import,public
来源： https://www.cnblogs.com/hy-123/p/11864519.html