num.java

中山大学编译原理课程的一个实验

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package symbols;

/**
 * special number token with values.
 * @author Beeven
 */
public class Num extends Token{
    public final double value;
    public Num(double v)
    {
        super(Tag.NUM);
        value=v;
    }
    @Override
    public String toString()
    {
        return String.valueOf(value);
    }
}