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

Practical example

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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.");
        }
    }
}