progressthread.java~23~

监视内存的使用情况,Java编程可通过编译运行

package jmemorydemo;

import javax.swing.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class ProgressThread extends Thread {
  JProgressBar pbar;
  JLabel label;

  public ProgressThread(JProgressBar pbar,JLabel label) {
    this.pbar=pbar;
    this.label=label;
  }
  public void run() {
    /**@todo Override this java.lang.Thread method*/

    int min=0;
    int max=100;
    int free=0;
    int totle=0;
    int status=0;

    pbar.setMinimum(min);
    pbar.setMaximum(max);
    pbar.setValue(status);
    while(true){
      try{
        totle=(int)(Runtime.getRuntime().totalMemory()/1024);
        free=(int)(Runtime.getRuntime().freeMemory()/1024);
      }catch(Exception e){
        e.printStackTrace();
      }
      label.setText("Free Memory :"+(int)(Runtime.getRuntime().freeMemory()/1024)+"K"+"  Totle Memory Allocated :"
                    +(int)(Runtime.getRuntime().totalMemory()/1024)+"K");
      status=(int)(free*100/totle);
      pbar.setValue(status);
      pbar.setString("Free Momery "+ status+"%");
      try{
        this.sleep(500);
      }catch(InterruptedException err){}
    }

  }

}