Deflater finished() function in Java with examples
Last Updated :
24 Jun, 2019
The finished() function of the Deflater class in java.util.zip returns true if the end of compression data output stream has been reached.
Function Signature:
public boolean finished()
Syntax:
d.finished();
Parameter: The function requires no parameter
Return Type: The function returns boolean value i.e. true if all the input is compressed and stored in the given buffer, else false.
Exception: The function does not throw any exception
Example 1: To demonstrate the use of finished() function
import java.util.zip.*;
import java.io.UnsupportedEncodingException;
class GFG {
public static void main(String args[])
throws UnsupportedEncodingException
{
Deflater d = new Deflater();
String pattern = "GeeksforGeeks" , text = "" ;
for ( int i = 0 ; i < 4 ; i++)
text += pattern;
d.setInput(text.getBytes( "UTF-8" ));
d.finish();
System.out.println( "end of compressed data "
+ "output stream reached :"
+ d.finished());
byte output[] = new byte [ 1024 ];
int size = d.deflate(output);
System.out.println( "Compressed String :"
+ new String(output)
+ "\n Size " + size);
System.out.println( "Original String :" + text
+ "\n Size " + text.length());
System.out.println( "end of compressed data "
+ "output stream reached :"
+ d.finished());
d.end();
}
}
|
Output:
end of compressed data output stream reached :false
Compressed String :x?sOM?.N?/r???q??
Size 21
Original String :GeeksforGeeksGeeksforGeeksGeeksforGeeksGeeksforGeeks
Size 52
end of compressed data output stream reached :true
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/zip/Deflater.html#finished()
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