package trees.expressiontrees;

import java.util.Queue;
import java.util.Vector;

public class ExpressionTreeDemo1 {

	public static void main(String[] args){
		Helper help = new Helper();
		Queue<Token> input = null;
		Vector<Token> ipn = null;
		try {
			input = help.lexer();
			System.out.println("input: " + input.toString());
			ipn = help.convert(input);
			System.out.println("ipn: " + ipn.toString());
		} catch (Exception e) {
			e.printStackTrace();
		}
		ExpressionTree tree = new ExpressionTree();
		try {
			tree.buildTree(ipn);
		} catch (Exception e) {
			e.printStackTrace();
		}
		System.out.println(tree.evaluate());
		System.out.println(tree.eval());
	}
}