Untitled

// Ścieżka do pliku, który chcemy zzipować
        String sourceFile = "test.eml";
        
        // Ścieżka do pliku wynikowego .zip
        String zipFileName = "test.zip";
        
        try (FileOutputStream fos = new FileOutputStream(zipFileName);
             ZipOutputStream zipOut = new ZipOutputStream(fos);
             FileInputStream fis = new FileInputStream(sourceFile)) {
             
            // Dodanie pliku do archiwum ZIP
            ZipEntry zipEntry = new ZipEntry(sourceFile);
            zipOut.putNextEntry(zipEntry);
            
            byte[] buffer = new byte[1024];
            int length;
            while ((length = fis.read(buffer)) >= 0) {
                zipOut.write(buffer, 0, length);
            }
            
            zipOut.closeEntry();
            System.out.println("Zipping completed: " + zipFileName);
            
        } catch (IOException e) {
            System.err.println("An error occurred while zipping the file: " + e.getMessage());
        }