import java.io.*;
public class item implements Cloneable {
public int x;
public item (int m)
     { System.out.print("item constructor with arg: ");
       System.out.println(m); 
       x = m;
     }
public item()
     { System.out.println("item constructor without arg");
       x = 0; // redundant: by default is zero
     }
public Object clone()
     { System.out.println("item clone method");
       item it = new item();
       it.x = x;
       return it;
     } 
public void print(PrintWriter os)
     { os.print("write item obj to stream: x = ");
       os.print(x);
     }
public String toString()
     { CharArrayWriter buf = new CharArrayWriter();
       PrintWriter os = new PrintWriter(buf);
       print(os);
       return buf.toString();
     }
}// end class item