Deflater getBytesWritten() function in Java with examples

The getBytesWritten() function of the Deflater class in java.util.zip returns the total number of compressed bytes output provided till now.

Function Signature:

public long getBytesWritten()

Syntax:

d.getBytesWritten();

Parameter: The function requires no parameter

Return Type: The function returns a Long value which is the total number of compressed bytes output.

Exception: The function does not throw any exception

Example 1:

// Java program to describe the use
// of getBytesWritten() function

import java.util.zip.*;
import java.io.UnsupportedEncodingException;

class GFG {
    public static void main(String args[])
        throws UnsupportedEncodingException
    {
        // deflater
        Deflater d = new Deflater();

        // get the text
        String pattern = "GeeksforGeeks", text = "";

        // generate the text
        for (int i = 0; i < 4; i++)
            text += pattern;

        // set the Input for deflator
        d.setInput(text.getBytes("UTF-8"));

        // finish
        d.finish();

        // output bytes
        byte output[] = new byte[1024];

        // compress the data
        int size = d.deflate(output);

        // compressed String
        System.out.println("Compressed String :"
                           + new String(output)
                           + "\n Size " + size);

        // original String
        System.out.println("Original String :" + text
                           + "\n Size " + text.length());

        // get the total number of
        // compressed bytes output so far
        System.out.println("Bytes Written value :"
                           + d.getBytesWritten());

        // end
        d.end();
    }
}

Output:

Compressed String :x?sOM?.N?/r???q??
 Size 21
Original String :GeeksforGeeksGeeksforGeeksGeeksforGeeksGeeksforGeeks
 Size 52
Bytes Written value :21

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/zip/Deflater.html#getBytesWritten()