Get total size of file in bytes

JavaFileinputstream

Java Problem Overview

> Possible Duplicate:
> java get file size efficiently

I have a File called filename which is located in E://file.txt.

FileInputStream fileinputstream = new FileInputStream(filename);

What I want to do is to calculate the size of this file in bytes. How can I have this done?

Java Solutions

Solution 1 - Java

You can use the length() method on File which returns the size in bytes.

Solution 2 - Java

You don't need FileInputStream to calculate file size, new File(path_to_file).length() is enough. Or, if you insist, use fileinputstream.getChannel().size().

Solution 3 - Java

You can do that simple with Files.size(new File(filename).toPath()).

Solution 4 - Java

public static void main(String[] args) {
        try {
            File file = new File("test.txt");
            System.out.println(file.length());
        } catch (Exception e) {
        }
    }
Categories
Recommended Java Solutions
Recommended Fileinputstream Solutions

Previous Solution:

Is there a way to pass optional parameters to a function?

Python

Next Solution:

How can I generate a diff for a single file between two branches in github

GitGithub

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionIllepView Question on Stackoverflow
Solution 1 - JavaSwapnilView Answer on Stackoverflow
Solution 2 - JavaHui ZhengView Answer on Stackoverflow
Solution 3 - JavaakaIDIOTView Answer on Stackoverflow
Solution 4 - JavaAvinash NairView Answer on Stackoverflow