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Java - get file information

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Created by:
Alicia-Lambert
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In this article, we would like to show you how to get file information in Java.

There are several methods to get file information in Java.io.File package:

  • getName() - returns the name of the given file object,
  • getAbsolutePath() -┬áreturns the absolute pathname of the given file object,
  • canWrite() -┬áreturns a boolean value representing whether the application is allowed to write the file or not,
  • canRead() -┬áreturns a boolean value representing whether the application is allowed to read the file or not,
  • getParent() -┬áreturns a String value which is the path of the Parent of the given file object,
  • length() -┬áreturns┬áthe length of the file in bits.

Practical example

import java.io.File;

public class Example {
    
    public static void main(String[] args) {
        File file = new File("C:\\projects\\dirask.txt");
        
        if (file.exists()) {
            System.out.println("file name: " + file.getName());
            System.out.println("absolute path: " + file.getAbsolutePath());
            System.out.println("writeable: " + file.canWrite());
            System.out.println("readable " + file.canRead());
            System.out.println("parent path: " + file.getParent());
            System.out.println("file size in bytes " + file.length());
        } else {
            System.out.println("File doesn't exist.");
        }
    }
}

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