Java tutorial
import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.FilterInputStream; import java.io.InputStream; public class Main { public static void main(String[] args) throws Exception { boolean bool = false; // create input streams InputStream is = new FileInputStream("C://test.txt"); FilterInputStream fis = new BufferedInputStream(is); // tests if the input stream supports mark() and reset() bool = fis.markSupported(); // prints System.out.print("Supports mark and reset methods: " + bool); } }