#ifndef J_STREAM_H
#define J_STREAM_H

#include <string>

class InputStream
{
	public:
	virtual int read() = 0;
	virtual int read(char* b, int off, int len) = 0;
	virtual void close() = 0;
};

class OutputStream
{
	public:
	virtual void write(int b) = 0;
	virtual void write(const char* b, int off, int len) = 0;
	virtual void flush() = 0;
	virtual void close() = 0;
};

#endif