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Deflater getAdler() function in Java with examples

  • Last Updated : 24 Jun, 2019
Geek Week

The getAdler() function of the Deflater class in returns the Adler-32 value of the uncompressed data. Adler-32 is a checksum algorithm which is widely used zlib compression library.

Function Signature:

public int getAdler()



Parameter: The function requires no parameter

Return Type: The function returns an Integer value which is the Adler-32 value of the uncompressed data.

Exception: The function does not throw any exception

Example 1:

// Java program to describe the use
// of finished() function
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
        // 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 Adler-32 value
        System.out.println("Adler-32 value :"
                           + d.getAdler());
        // end


Compressed String :x?sOM?.N?/r???q??
 Size 21
Original String :GeeksforGeeksGeeksforGeeksGeeksforGeeksGeeksforGeeks
 Size 52
Adler-32 value :511972501


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