/**
 * Program class represents a Program.
 * Creation date: (3/3/2003 2:52:55 AM)
 * @author: Jianguo Lu
 */
import java.util.*;
public class Program {
	private Vector statements;
	
/**
 * Program constructor comment.
 */
public Program() {
	super();
}
	public Program(Statement s) {
		statements = new Vector();
		statements.add(s);
	}
	public Program(Statement s, Program p) {
		statements = p.getStatements();
		statements.add(s);
	}
	public Vector getStatements(){
		return statements;
	}
	public String toXML(){
		String result="<program>";
		for (Enumeration e=statements.elements(); e.hasMoreElements(); ){
			Statement s= (Statement)e.nextElement();
			result += (s instanceof Assignment)? ((Assignment)s).toXML(): " ";
		}
		result += "</program>";
		return result;
	}
}