java移动/赋值文件 copy/move file

public class FileAccess
{

 public static boolean Move(File srcFile, String destPath)
 {
        // Destination directory
        File dir = new File(destPath);
      
        // Move file to new directory
        boolean success = srcFile.renameTo(new File(dir, srcFile.getName()));
      
        return success;
    }
 
 public static boolean Move(String srcFile, String destPath)
 {
        // File (or directory) to be moved
        File file = new File(srcFile);
      
        // Destination directory
        File dir = new File(destPath);
      
        // Move file to new directory
        boolean success = file.renameTo(new File(dir, file.getName()));
      
        return success;
    }
 
 public  static   void     Copy(String     oldPath,     String     newPath)   
   {   
          try     {   
                  int     bytesum     =     0;   
                  int     byteread     =     0;   
                  File     oldfile     =     new     File(oldPath);   
                  if     (oldfile.exists())     {     
                          InputStream     inStream     =     new     FileInputStream(oldPath);    
                          FileOutputStream     fs     =     new     FileOutputStream(newPath);   
                          byte[]     buffer     =     new     byte[1444];   
                          int     length;   
                          while     (     (byteread     =     inStream.read(buffer))     !=     -1)     {   
                                  bytesum     +=     byteread;       
                                  System.out.println(bytesum);   
                                  fs.write(buffer,     0,     byteread);   
                          }   
                          inStream.close();   
                  }   
          }   
          catch     (Exception     e)     {   
                  System.out.println( "error  ");   
                  e.printStackTrace();   
          }   
    }    
   public   static  void     Copy(File     oldfile,     String     newPath)   
   {   
          try     {   
                  int     bytesum     =     0;   
                  int     byteread     =     0;   
                  //File     oldfile     =     new     File(oldPath);   
                  if     (oldfile.exists())     {     
                          InputStream     inStream     =     new     FileInputStream(oldfile);    
                          FileOutputStream     fs     =     new     FileOutputStream(newPath);   
                          byte[]     buffer     =     new     byte[1444];   
                          while     (     (byteread     =     inStream.read(buffer))     !=     -1)     {   
                                  bytesum     +=     byteread;       
                                  System.out.println(bytesum);   
                                  fs.write(buffer,     0,     byteread);   
                          }   
                          inStream.close();   
                  }   
          }   
          catch     (Exception     e)     {   
                  System.out.println( "error  ");   
                  e.printStackTrace();   
          }   
    }    
}

自己做了个demo

import java.io.*;
public class FileAccess {
 public  static   void     Copy(String     oldPath,     String     newPath)   
       {   
              try     {   
                      int     bytesum     =     0;   
                      int     byteread     =     0;   
                      File    oldfile     =     new     File(oldPath);   
                      if     (oldfile.exists())     {     
                              InputStream     inStream     =     new     FileInputStream(oldPath);    
                              FileOutputStream     fs     =     new     FileOutputStream(newPath);   
                              byte[]     buffer     =     new     byte[1444];   
                              int     length;   
                              while     (     (byteread     =     inStream.read(buffer))     !=     -1)     {   
                                      bytesum     +=     byteread;       
                                      System.out.println(bytesum);   
                                      fs.write(buffer,     0,     byteread);   
                              }   
                              inStream.close();   
                      }   
              }   
              catch     (Exception     e)     {   
                      System.out.println( "error  ");   
                      e.printStackTrace();   
              }   
        }    
       
       
    public static void main(String argv[]){
      String oldfile = "C:\aa.txt";
      String newPath = "D:\bb.txt";
     Copy( oldfile, newPath);
    }
}