pure interface of class Printer

public abstract class Printer
{
    public Printer();
    public abstract void printRawString(String s);
    public void printString(String s);
    public void printNewLine();
    public void printRoman(String s);
    public void printBold(String s);
    public void printItalic(String s);
    public void printTypewriter(String s);
    public void printSpace();
    public void printLBrace();
    public void printArrow();
    public void printRBrace();
    public void printOtimes();
    public void printSubscript(Printable p);
    public void printArray(Printable[] Ps,
                           String separator);
    public void print(Printable p);
    public void printA(Printable p);
    public void printB(Printable p);
    public void newLine();
    public void indent();
    public void outdent();
    public void close();
}