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The following code fragment demonstrates a trivial compression and decompression of a string using Deflater and Inflater.

 try {
 // Encode a String into bytes
 String inputString = "blahblahblah\u20AC\u20AC";
 byte[] input = inputString.getBytes("UTF-8");
 // Compress the bytes
 byte[] output = new byte[100];
 Deflater compresser = new Deflater();
 compresser.setInput(input);
 compresser.finish();
 int compressedDataLength = compresser.deflate(output);
 // Decompress the bytes
 Inflater decompresser = new Inflater();
 decompresser.setInput(output, 0, compressedDataLength);
 byte[] result = new byte[100];
 int resultLength = decompresser.inflate(result);
 decompresser.end();
 // Decode the bytes into a String
 String outputString = new String(result, 0, resultLength, "UTF-8");
 } catch(java.io.UnsupportedEncodingException ex) {
 // handle
 } catch (java.util.zip.DataFormatException ex) {
 // handle
 }
 

Since the number of bytes may be greater than Integer.MAX_VALUE, the Deflater.getBytesRead() method is now the preferred means of obtaining this information.

Since the number of bytes may be greater than Integer.MAX_VALUE, the Deflater.getBytesWritten() method is now the preferred means of obtaining this information.