Get total size of file in bytes

Question

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

User · Accepted Answer

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

User · Answer

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

User · Answer

public static void main String   args            try               File file   new File  test txt                System out println file length               catch  Exception e

User · Answer

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

[java] Get total size of file in bytes

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