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public void bubbleSort(double[] a){
//½«Òª½øÐбȽϵÄÊý´óµÄ¾¡Á¿ÍùºóÅÅ£¬Ã¿´ÎÑ­»·°Ñ×î´óµÄÅÅÔÚÒªÅÅÐòÊý×éµÄĩλ¡£
boolean hasSwap = true;
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   Runtime runtime = Runtime.getRuntime();// ¿ªÊ¼µ÷Ó÷þÎñ¶Ë½Å±¾
   Process process = runtime.exec("encode.sh /home/tomcat6/kgedata/note_not_encode/ /home/tomcat6/kgedata/note_encode/");
 int exitVal = process.waitFor();
 System.out.prin ......

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  double a = (3.3-2.4)/0.1;
  System.out.println(a);
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import java.text.DecimalFormat
double a = 2.3659874;
//СÊý¸ñʽ»¯£¬ÒýºÅÖеÄ0.000±íʾ±£ÁôСÊýµãºóÈý루µÚËÄλËÄÉáÎåÈ룩
DecimalFormat df = new DecimalFormat("0.000");
String num = df.format(a);
System.out.println(num);
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