verbaction.java

来自「源码为科学出版社出版的英文<java设计模式>(影印版)所用的所有例」· Java 代码 · 共 22 行

import java.util.*;

public class VerbAction extends InterpChain {
   Vector actionList;

public VerbAction(Vector aList) {
   actionList = aList;
}
public boolean interpret() {
 //move top verb to action list
     if(stk.top().getType() == ParseObject.VERB)
     {
      actionList.addElement(stk.pop());
      return true;
     }
     else
       return false;
  }

}