title: what is "file " datatype in java..?
body: <pre><code>import java.io.*;
  
  class SplitFile    
  {    
      private File fSplit;
      private int sizeInBytes;
  
      private int count;
  
      public static void main(String[] args) throws IOException
      {    
          Console con = System.console();
  
          String fileName;
  
          int size = 0;
  
          System.out.print("Enter the file name to split: ");
  
          fileName = con.readLine();
  
          System.out.print("Enter the size of the target file: ");
  
          size = Integer.parseInt(con.readLine());
  
          SplitFile sf = new SplitFile(fileName, size);
  
          sf.split();
  
      }
  
      public File checkFileExists(String fName)    
      {    
          File f = new File(fName);
  
          if (!f.exists())    
          {    
              System.out.println("File " + fName + " does not exists");
  
              System.exit(0);
  
          }
  
          return f;
  
      }
  
      public int validateSize(int s)    
      {    
          if (fSplit.length() &lt; s)    
          {
  
              System.out.println("Invalid Size");
  
              System.exit(0);
  
          }
  
          return s;
  
      }
  
      public String createNextFileName()    
      {    
          ++count;
  
          String fileName;
  
          fileName = "part_" + count + "." + fSplit.getName();
  
          return fileName;
  
      }
  
      public SplitFile(String fName, int s)    
      {
  
          fSplit = checkFileExists(fName);
  
          sizeInBytes = validateSize(s);
  
          count = 0;
  
      }
  
      public void split() throws IOException
  
      {
  
          FileInputStream fis = new FileInputStream(fSplit);
  
          BufferedInputStream bis = new BufferedInputStream(fis);
  
          File fileSegment = new File(createNextFileName());
  
          FileOutputStream fos = new FileOutputStream(fileSegment);
  
          BufferedOutputStream bos = new BufferedOutputStream(fos);
  
          int ch;
  
          int currentByteCount = 0;
  
          while ((ch = bis.read()) != -1)
  
          {
  
              bos.write(ch);
  
              ++currentByteCount;
  
              if (currentByteCount == sizeInBytes)
  
              {
  
                  bos.close();
  
                  fos.close();
  
                  fileSegment = new File(createNextFileName());
  
                  fos = new FileOutputStream(fileSegment);
  
                  bos = new BufferedOutputStream(fos);
  
                  currentByteCount = 0;
  
              }
  
          }
  
          bis.close();
  
          fis.close();
  
          bos.close();
  
          fos.close();
  
      }
  
  }
  </code></pre>