Set file attributes. : Files « File Input Output « Java

1. Java
2. File Input Output
3. Files

Set file attributes.

   

import java.io.File;
import java.util.Calendar;
import java.util.Date;

public class Main {
  public static void main(String[] argv) throws Exception {
    File f = new File("name.txt");

    if (!f.exists()) {
      System.out.println("File not found.");
      return;
    }
    if (f.canRead())
      System.out.println("  Readable");
    else
      System.out.println("  Not Readable");

    if (f.canWrite())
      System.out.println("  Writable");
    else
      System.out.println("  Not Writable");
    System.out.println("  Last modified on " + new Date(f.lastModified()));

    long t = Calendar.getInstance().getTimeInMillis();
    if (!f.setLastModified(t))
      System.out.println("Can't set time.");

    if (!f.setReadOnly())
      System.out.println("Can't set to read-only.");

    if (f.canRead())
      System.out.println("  Readable");
    else
      System.out.println("  Not Readable");

    if (f.canWrite())
      System.out.println("  Writable");
    else
      System.out.println("  Not Writable");
    System.out.println("  Last modified on " + new Date(f.lastModified()));

    if (!f.setWritable(true, false))
      System.out.println("Can't return to read/write.");

    if (f.canRead())
      System.out.println("  Readable");
    else
      System.out.println("  Not Readable");

    if (f.canWrite())
      System.out.println("  Writable");
    else
      System.out.println("  Not Writable");
  }
}

   
    
    
  

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