中国联通校园招聘笔试题

编程语言 · 题号 37564
单选题编程语言难度 3央国企

题目

Which statement is true for the class java.util.ArrayList?

选项5 个

AThe elements in the collection are ordered.
BThe collection is guaranteed to be immutable.
CThe elements in the collection are guaranteed to be unique.
DThe elements in the collection are accessed using a unique key.
EThe elements in the collections are guaranteed to be synchronized.
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