This brief guide covers how to password protect a ZIP file in Java. It explains all the steps and a sample code to encrypt ZIP file in Java. Moreover, you do not need to install any other compression application to work with this feature.

Steps to Password Protect a ZIP File in Java

1. Prepare the development environment to work with the Aspose.ZIP library
2. Get the source archive while specifying the encryption password and algorithm
3. Create an entry for the ZIP file with the createEntry() method
4. Write the protected ZIP file using the save() method

These steps outline the process to add password to ZIP file in Java. First of all, configure the IDE with the prerequisites mentioned above. Subsequently, access the input ZIP archive, apply security measures, and export it to a file path or stream according to your specific needs.

Code to Password Protect a ZIP File in Java

This sample code showcases ZIP encryption in Java with the AES256 encryption algorithm. However, you can control the compression and the encryption settings while securing the ZIP archives. For instance, you can make changes like choosing the compression algorithm, encryption standard, and password along with other properties.

This quick guide discusses how to secure ZIP in Java. Besides, if you want to convert RAR to ZIP in Java, read the article on Turn RAR into ZIP in Java.