Computer Science 225
Advanced Programming

Spring 2017, Siena College

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FileMethods BlueJ Project

Click here to download a BlueJ project for FileMethods.

FileMethods Source Code

The Java source code for FileMethods is below. Click on a file name to download it.

FileMethods.java

import java.io.File;
import java.io.IOException;

/*
 * Example FileMethods: demonstrate more of the methods of 
 * the java.io.File class
 *
 * Jim Teresco, Siena College, Computer Science 225, Spring 2017
 *
 * $Id: templateapp.java 2975 2016-08-30 02:35:29Z terescoj $
 */

public class FileMethods {

    public static void main(String[] args) throws IOException {
        
        // our program requires a file name parameter
        if (args.length != 1) {
            System.err.println("Usage: java FileMethods filename");
            System.exit(1);
        }
        
        // now let's create a File object and see some things about this path
        File f = new File(args[0]);
        
        // There are many things we can do, so let's try some
        System.out.println("toString of this file: " + f);
        System.out.println(".exists(): " + f.exists());
        System.out.println(".canRead(): " + f.canRead());
        System.out.println(".canWrite(): " + f.canWrite());
        System.out.println(".canExecute(): " + f.canExecute());
        System.out.println(".getAbsolutePath(): " + f.getAbsolutePath());
        System.out.println(".getCanonicalPath(): " + f.getCanonicalPath());
        System.out.println(".getName(): " + f.getName());
        System.out.println(".getParent(): " + f.getParent());   
        System.out.println(".isAbsolute(): " + f.isAbsolute());
        System.out.println(".isDirectory(): " + f.isDirectory());
        System.out.println(".isFile(): " + f.isFile());
        System.out.println(".isHidden(): " + f.isHidden());
        System.out.println(".lastModified(): " + f.lastModified());
        System.out.println(".length(): " + f.length());

    }
}