Java tutorial
import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.FilterInputStream; import java.io.IOException; import java.io.InputStream; 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 filter input stream 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()); } }