import jsjf.*;

/**
 * ExpressionTreeOp represents an element in an expression tree.
 * 
 * @author Lewis and Chase
 * @version 4.0
 */
public class ExpressionTreeOp 
{
    private int termType;
    private char operator;
    private int value;

    /**
     * Creates a new expression tree object with the specified data.
     *
     * @param type the integer type of the expression
     * @param op   the operand for the expression
     * @param val  the value for the expression
     */
    public ExpressionTreeOp(int type, char op, int val) 
    {
        termType = type;
        operator = op;
        value = val;
    }

    /**
     * Returns true if this object is an operator and false otherwise.
     *
     * @return true if this object is an operator, false otherwise
     */
    public boolean isOperator() 
    {
        return (termType == 1);
    }
    
    /**
     *Returns the operator of this expression tree object.
     *
     * @return the character representation of the operator
     */
    public char getOperator() 
    {
        return operator;
    }

    /**
     * Returns the value of this expression tree object.
     *
     * @return the value of this expression tree object
     */
    public int getValue() 
    {
        return value;
    }
    
    public String toString()
    {
        if (termType == 1) 
            return operator + "";
        else
            return value + "";
    }
}