Java读取文件创建时间和最后修改时间

 import java.io.BufferedReader;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;

 /**
  * 读取文件创建时间和最后修改时间
  */
 public class ReadFileTime {

     public static void main(String[] args) {
         getCreateTime();
         getModifiedTime_1();
         getModifiedTime_2();
     }

     /**
      * 读取文件创建时间
      */
     public static void getCreateTime(){
         String filePath = "C:\\test.txt";
         String strTime = null;
         try {
             Process p = Runtime.getRuntime().exec("cmd /C dir "
                     + filePath
                     + "/tc" );
             InputStream is = p.getInputStream();
             BufferedReader br = new BufferedReader(new InputStreamReader(is));
             String line;
             while((line = br.readLine()) != null){
                 if(line.endsWith(".txt")){
                     strTime = line.substring(0,17);
                     break;
                 }
              }
         } catch (IOException e) {
             e.printStackTrace();
         }
         System.out.println("创建时间    " + strTime);
         //输出：创建时间   2009-08-17  10:21
     }
     /**
      * 读取文件修改时间的方法1
      */
     @SuppressWarnings("deprecation")
     public static void getModifiedTime_1(){
         File f = new File("C:\\test.txt");
         Calendar cal = Calendar.getInstance();
         long time = f.lastModified();
         cal.setTimeInMillis(time);
         //此处toLocalString()方法是不推荐的，但是仍可输出
         System.out.println("修改时间[1] " + cal.getTime().toLocaleString());
         //输出：修改时间[1]    2009-8-17 10:32:38
     }

     /**
      * 读取修改时间的方法2
      */
     public static void getModifiedTime_2(){
         File f = new File("C:\\test.txt");
         Calendar cal = Calendar.getInstance();
         long time = f.lastModified();
         SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         cal.setTimeInMillis(time);
         System.out.println("修改时间[2] " + formatter.format(cal.getTime()));
         //输出：修改时间[2]    2009-08-17 10:32:38
     }
 }