- java.util.zip Package Classes
- java.util.zip - Home
- java.util.zip - Adler32
- java.util.zip - CheckedInputStream
- java.util.zip - CheckedOutputStream
- java.util.zip - CRC32
- java.util.zip - Deflater
- java.util.zip - DeflaterInputStream
- java.util.zip - DeflaterOutputStream
- java.util.zip - GZIPInputStream
- java.util.zip - GZIPOutputStream
- java.util.zip - Inflater
- java.util.zip - InflaterInputStream
- java.util.zip - InflaterOutputStream
- java.util.zip - ZipEntry
- java.util.zip - ZipFile
- java.util.zip - ZipInputStream
- java.util.zip - ZipOutputStream
- java.util.zip Package Extras
- java.util.zip - Exceptions
- java.util.zip - Error
- java.util.zip Useful Resources
- java.util.zip - Quick Guide
- java.util.zip - Useful Resources
- java.util.zip - Discussion
java.util.zip.Deflater.getBytesRead() Method Example
Description
The java.util.zip.Deflater.getBytesRead() method returns the total number of uncompressed bytes input so far.
Declaration
Following is the declaration for java.util.zip.Deflater.getBytesRead() method.
public long getBytesRead()
Returns
the total (non-negative) number of uncompressed bytes input so far.
Example
The following example shows the usage of java.util.zip.Deflater.getBytesRead() method.
package com.tutorialspoint; import java.io.UnsupportedEncodingException; import java.util.zip.DataFormatException; import java.util.zip.Deflater; import java.util.zip.Inflater; public class DeflaterDemo { public static void main(String[] args) throws DataFormatException, UnsupportedEncodingException { String message = "Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;" +"Welcome to TutorialsPoint.com;"; System.out.println("Original Message length : " + message.length()); byte[] input = message.getBytes("UTF-8"); // Compress the bytes byte[] output = new byte[1024]; Deflater deflater = new Deflater(); deflater.setInput(input); deflater.finish(); int compressedDataLength = deflater.deflate(output,0 , output.length, Deflater.NO_FLUSH); System.out.println("Bytes Read :" + deflater.getBytesRead()); System.out.println("Compressed Message Checksum :" + deflater.getAdler()); deflater.finished(); System.out.println("Compressed Message length : " + compressedDataLength); // Decompress the bytes Inflater inflater = new Inflater(); inflater.setInput(output, 0, compressedDataLength); byte[] result = new byte[1024]; int resultLength = inflater.inflate(result); inflater.finished(); // Decode the bytes into a String message = new String(result, 0, resultLength, "UTF-8"); System.out.println("UnCompressed Message Checksum :" + inflater.getAdler()); System.out.println("UnCompressed Message length : " + message.length()); } }
Let us compile and run the above program, this will produce the following result −
Original Message length : 300 Bytes Read :300 Compressed Message Checksum :368538129 Compressed Message length : 42 UnCompressed Message Checksum :368538129 UnCompressed Message length : 300Print
javazip_deflater.htm
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