What is the process for copying a large file with 4bits Encryption in Java without encountering an OutOfMemoryError related to Java heap space?

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To copy a large file with 4bits encryption in Java without encountering an OutOfMemoryError related to Java heap space, you can use the following process:

1. Use the BufferedInputStream and BufferedOutputStream classes to read and write the file respectively. These classes provide efficient byte-level access to the file and can handle large files without running out of memory.

2. Break the file into smaller chunks, and encrypt and write each chunk separately. This will prevent the entire file from being loaded into memory at once, which can cause an OutOfMemoryError.

3. Flush and close the output stream after writing each chunk to ensure that the data is written to disk and the memory is released.

4. To decrypt and read the file, use the same approach in reverse. Read and decrypt each chunk separately and write it to the output stream.

5. Ensure that all resources are properly closed after the encryption or decryption is complete.

By using this approach, you can copy large files with 4bits encryption without encountering memory issues in your Java application.