java如何摆脱arrayList中的匿名对象？

Question

ArrayList<Object> ingred = new ArrayList <Object>();
ingred.add(new Cup()); // From class Cup
ingred.remove(Cup); // Cup cannot be resolved to a variable               

无法使用任一删除方法。请帮忙

Answer 1

让它不那么“匿名”怎么样？比如存储对它的引用：

Cup x = new Cup(); 
ingred.add(x); 
ingred.remove(x);