31 lines
823 B
Java
31 lines
823 B
Java
package patronInterpreter;
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import java.util.ArrayList;
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import java.util.Iterator;
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//esta clase seria el cliente
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public class Main {
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public static void main(String[] args) {
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String roman = "MCMXXVIII";
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Context context = new Context(roman);
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//Construye el árbol sintáctico
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ArrayList<Expression> tree = new ArrayList<Expression>();
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tree.add(new ThousandExpression());
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tree.add(new HundredExpression());
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tree.add(new TenExpression());
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tree.add(new OneExpression());
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// Interpretar: recorre todas las Expresiones del árbol.
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for (Iterator it = tree.iterator(); it.hasNext();){
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Expression exp = (Expression)it.next();
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exp.interpret(context);
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}
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System.out.println(roman + " = " + Integer.toString(context.getOutput()));
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}
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}
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