// class that provides a Poly with Binary Coeffs
import java.awt.*;

public class BinaryPoly extends Poly
{
  // set type of poly to integer
  
  BinaryPoly(int degree)
  {  super(degree, new Integer(0)); }

  BinaryPoly(int degree, Integer[] coeffs)
  {  super(degree, coeffs, new Integer(0)); }

  // -----------------------
public void printPoly(TextArea text)
  {
    boolean plusflag = false;

    for (int j=0; j <= this.degree; j++)
      {
      if ((j==0) && (((Integer)coeffs[j]).intValue()!=0))
	{
	  plusflag = true;
	  text.append("1");
	}
      else if (((Integer)coeffs[j]).intValue()!=0)
	{
	  if (plusflag)  text.append(" + "); 
	  text.append("x^" + j);
	  plusflag=true;
	}
      }
    if (!plusflag)    // no polynomial printed
      text.append("Zero Polynomial");
    text.append("\n");
  }

  // -----------------------
public String getString()
  {
    char [] ch = new char[degree+1];
    String nums = "";

    for (int j=0; j <= degree; j++)
      {
      ch[j] = Character.forDigit(((Integer)coeffs[j]).intValue(), 2);
      nums += (new Character(ch[j])).toString();
      }

    return nums;
  }

public Poly shiftRight(int shval)
   {
     BinaryPoly newp = new BinaryPoly(degree+shval);
     for (int i=degree; i >= 0; i--)
       newp.set(coeffs[i], i+shval);
     for (int j=shval-1; j >= 0; j--)
       newp.set(new Integer(0), j);     
       
     return newp;
  }
 
       

}