package java.io;

public abstract class InputStream
{

 public InputStream()
 {
 }
 
 public abstract int read() throws IOException;
 
 public int read(byte[]) throws IOException
 {
  return 0;
 }
 
 public int read(byte[], int, int) throws IOException
 {
  return 0;
 }
 
 public long skip(long) throws IOException
 {
  return 0;
 }
 
 public int available() throws IOException
 {
  return 0;
 }
 
 public void close() throws IOException
 {
 }
 
 public void mark(int)
 {
 }
 
 public void reset() throws IOException
 {
 }
 
 public boolean markSupported()
 {
  return false;
 }
 
}