一单选1下面那一项是正确的AArrayList myList = new Object;BList myList = new ArrayList;CArrayList myList = new List;DList myList = new List;2根据下面的代码如果String s = null;会抛出NullPointerException异常的有① Ifs!=null &slength

日期: 2025-07-15 10:00:58
标签: 社会

C. test ok and abc

一单选1下面那一项是正确的AArrayList myList = new Object;BList myList = new ArrayList;CArrayList myList = new List;DList myList = new List;2根据下面的代码如果String s = null;会抛出NullPointerException异常的有① Ifs!=null &slength

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