maskingthread.java

来自「这是一个基于计算网格的web service。它用java编写。一旦安装完成」· Java 代码 · 共 57 行

/*
 * MaskingThread.java
 *
 * Created on April 5, 2005, 5:25 PM
 */

package jwsgrid.util.priv;

import java.io.*;

/**
 * This class attempts to erase characters echoed to the console.
 */

public class MaskingThread extends Thread {
    private boolean stop = false;
    private int index;
    private String prompt;


  /**
   *@param prompt The prompt displayed to the user
   */
   public MaskingThread( String prompt ) {
      this.prompt = prompt;
   }


  /**
   * Begin masking until asked to stop.
   */
   public void run() {
      while ( !stop ) {
         try {
            // attempt masking at this rate
            this.sleep( 1 );
            
         } catch ( InterruptedException iex ) {
            iex.printStackTrace();
         }
         
         if ( !stop ) {
            System.out.print( "\r" + prompt + " \r" + prompt );
         }
         
         System.out.flush();
      }
   }


  /**
   * Instruct the thread to stop masking.
   */
   public void stopMasking() {
      this.stop = true;
   }
}