drawarcs.java

此代码是java多线程编写的一个风扇的小例子

import java.awt.BorderLayout;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

public class DrawArcs extends JFrame implements ActionListener{
	ArcsPanel ap;
    int speed=1000;
	public static void main(String[] args) {
		DrawArcs 	frame = new DrawArcs();
		// frame.setLayout(new BorderLayout ());
		frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
		frame.setVisible(true);
		frame.setSize(250, 350);

	}
	

	public DrawArcs() {
		ap = new ArcsPanel();
		JButton b1 = new JButton("1");
		JButton b2 = new JButton("2");
		JButton b3 = new JButton("3");
		JButton b4 = new JButton("开");
		JButton b5 = new JButton("关");
		
		setTitle("DrawArcs");
		getContentPane().add(ap,BorderLayout.CENTER);

		JPanel p1 = new JPanel();
		p1.setLayout(new GridLayout(2, 3));
		
		p1.add(b1);
		p1.add(b2);
		p1.add(b3);

		p1.add(b4);
		p1.add(b5);
		getContentPane().add(p1, BorderLayout.SOUTH);
		b1.addActionListener(this);
		b2.addActionListener(this);
		b3.addActionListener(this);
		b4.addActionListener(this);
		b5.addActionListener(this);

	}
	
	
	
	public void actionPerformed(ActionEvent e) {
		
		if (e.getActionCommand().equals("1")) {
		    new ArcsPanel().setSpeed(10,ap);
		    
		}   
        
		    
		if (e.getActionCommand().equals("2")) {
		    new ArcsPanel().setSpeed(100,ap);
		    
		}   
        
		if (e.getActionCommand().equals("3")) {
		    new ArcsPanel().setSpeed(1000,ap);
		 
		}   
        
		if (e.getActionCommand().equals("关")) {
		    new ArcsPanel().setSpeed(0,ap);
		    
		}   
        
		if (e.getActionCommand().equals("开")) {
		    new ArcsPanel().setSpeed(1000,ap);
		    
		}   
        
		               
		
	}
	

}