FilterInputStream.mark(int readlimit) has the following syntax.
public void mark(int readlimit)
In the following code shows how to use FilterInputStream.mark(int readlimit) method.
import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.FilterInputStream; import java.io.IOException; import java.io.InputStream; //from w w w . j ava2s . com public class Main { public static void main(String[] args) throws Exception { // create input streams InputStream is = new FileInputStream("C://test.txt"); FilterInputStream fis = new BufferedInputStream(is); // reads and prints BufferedReader System.out.println((char) fis.read()); System.out.println((char) fis.read()); // mark invoked at this position fis.mark(0); System.out.println("mark() invoked"); System.out.println((char) fis.read()); System.out.println((char) fis.read()); // reset() repositioned the stream to the mark fis.reset(); System.out.println("reset() invoked"); System.out.println((char) fis.read()); System.out.println((char) fis.read()); } }