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How to Convert a Java File to a byte[] Array?

Barbara Streisand
Release： 2024-12-21 09:34:10
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How to Convert a Java File to a byte[] Array?

File to byte in Java[]

Question: How to convert java.io.File to byte []?

Answer:

Starting from JDK 7 you can use Files.readAllBytes(Path).

Example: 

import java.io.File;
import java.nio.file.Files;

File file;
// ...(file is initialised)...
byte[] fileContent = Files.readAllBytes(file.toPath());
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