试图添加一个重复的元素时,会抛出一个异常
试图添加一个重复的元素时,重复元素将不能被加入
一个set可以包含重复元素
编译的时候,重复的元素会导致错误
第1题:
A()is a set of procedures or a collection of techniques used in a systematic way which it is hoped will result in efficient learning.
method
略
第2题:
Collection有两个子接口分别是List和Set,List集合的特点是(),Set集合的特点是()
第3题:
关于Java的集合下面说法错误的是()
第4题:
set collection遇到重复的元素,处理的方式是()。
第5题:
List,Set,Map是否继承自Collection接口?
第6题:
Which of these statements concerning the collection interfaces are true?()
第7题:
第8题:
ArrayList
HashTable
HashSet
Collection
第9题:
The set variable contains all six elements from the coll collection, and the order is guaranteed to be preserved.
The set variable contains only three elements from the coll collection, and the order is guaranteed to be preserved.
The set variable contains all six elements from the coil collection, but the order is NOT guaranteed to be preserved.
The set variable contains only three elements from the coil collection, but the order is NOT guaranteed to be preserved.
第10题:
Set extends Collection.
All methods defined in Set are also defined in Collection.
List extends Collection.
All methods defined in List are also defined in Collection.
Map extends Collection.
第11题:
compaction ratio limit
garbage collection frequency
garbage collection times
fragmentation heap size
第12题:
On Wednesday, the statistics have been purged.
On Wednesday, the retention period has been set to zero.
On Wednesday, the collection interval has been set to zero.
On Wednesday, the collection level has been changed to All.
On Wednesday, the retention period has been set to one day.
On Wednesday, the retention period has been set to two days
On Wednesday, the collection level has been changed to Typical.
On Wednesday, the collection interval has been set to 1440 minutes.
第13题:
下列关于set和list集合说法错误的是()
第14题:
实现了Set接口的类是哪项?()
第15题:
如何创建一个List或Set对象?使用它们存放数据时哪种对象不能存放重复元素?
第16题:
关于集合框架特征,说法不正确的是()
第17题:
集合API中Set接口的特点是哪项?()
第18题:
Initially, for the Automatic Workload Repository (AWR) statistics,the retention period is set to 7 days, the collection interval is set to 30 minutes and the collection level is set to Typical in your production database. You have been using the Memory Advisor for the last three months to generate recommendations for tuning memory components. However,when you observe the Memory Advisor on a Friday,you find that the statistics are available only for two days, Thursday and Friday,of that week. What would have caused the statistics to be removed?()
第19题:
第20题:
Map集合中的键对象不允许重复
有序List集合中的元素允许重复
有序Set集合中的元素不允许重复
无序Collection集合中的元素允许重复、无序
第21题:
第22题:
第23题:
不允许重复元素,元素有顺序
允许重复元素,元素无顺序
允许重复元素,元素有顺序
不允许重复元素,元素无顺序
第24题:
试图添加一个重复的元素时,会抛出一个异常
试图添加一个重复的元素时,重复元素将不能被加入
一个set可以包含重复元素
编译的时候,重复的元素会导致错误