What can people see in the museum? A: collections of stones B: collections of cards C: collections of tickets D: 0

Collections类中实现对List集合排序的方法是（） A: max(Collection c) B: min(Collection c) C: copy(List dest,List src) D: sort(List list)

关于Collections与Collection，下面说法正确的是（） A: Set、List都是继承于Collections的类 B: Collections并非继承于Collection C: Collections是个java.util下的接口 D: Collections可以被实例化但只能有惟一的实例

使用Collections中的sort方法对集合进行排序时，如果不指定比较器，则要求集合中的元素类型必须实现（）接口。 A: SortedSet B: Comparator C: NavigableSet D: Comparable

Collections中根据指定 Comparator 产生的顺序对指定List集合元素进行排序的方法是 A: void reverse(List list) B: void shuffle(List list) C: void sort(List list) D: void swap(List list, int i, int j) E: void sort(List list, Comparator c)

Cash collections from customers include thecurrent month’s cash sales plus collections on credit sales.

下列选项中属于Collections和Collection的区别是（） A: Collection是一个接口 B: Collection是一个类 C: Collections是一个类 D: Collections是一个接口

The collections in the Louvre Museum are abundant and amazing .

I was _________ hoping to leave early today. A: a sort of B: a kind of C: of a sort D: sort of

12 In the following sort algorithms, the sorting algorithm that is suitable for a large number of records keywords, but with a small number of keywords to be sorted is（ ）. A: cardinality sort B: quick Sort C: merge sort D: heap sort