runn.java

数据结构综合实验,有各种排序算法和计算排序时间,最短路径算法,huffman编码解码.用图形界面实现.在jbuilder2006下运行通过.

package datas2;
import java.awt.*;
import javax.swing.*;
import java.text.*;


public class Runn extends JComponent implements Runnable{
        private volatile boolean keepRunning;

        private Font paintFont;
        private volatile String timeMsg;
        private volatile int arcLen;

        int t ;

         //sortPanel sP = new sortPanel( );
        //int t = sP.time;

        public Runn() {

                paintFont = new Font( " SansSerif" , Font.BOLD, 14);
                timeMsg = "never start ";
                arcLen = 0;
        }

        public void run(){
                runClock();
        }

        public void runClock() {
                System.out.println("thread running runClock() is " +
                        Thread.currentThread().getName());

                DecimalFormat fmt = new DecimalFormat ( " 0.000 ");
                long normalSleepTime = 1;

                int counter = 0;
                keepRunning = true;

                while( keepRunning ) {
                        try {
                                Thread.sleep(normalSleepTime);
                        }
                        catch(InterruptedException e) {}

                counter++;
                double counterSecs = counter / 10.0;

                timeMsg = fmt.format(counterSecs);

                arcLen = (((int)counterSecs) % 60 ) * 360 / 60;
                repaint();
                }
        }

        public void stopClock() {
                keepRunning = false;
        }

        public void paint(Graphics g) {
                System.out.println( "thread that invoked paint() is" +
                        Thread.currentThread().getName());

                g.setColor(Color.red);
                g.setFont(paintFont);
                g.drawString(timeMsg,0,15);

                g.fillOval(0,20,100,100);

                g.setColor(Color.orange);
                g.fillOval(3,23,94,94);

                g.setColor(Color.blue);
                g.fillArc(2,22,96,96,90, -arcLen);
        }
}