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Java集合框架:List、Set、Map等接口与实现类详解
2、 集合框架定义了一些接口,本节将概述每个接口的内容。 3、 集合与列表的不同之处在于结构和功能。 4、 Set接口存储无序且不重复的数据,而List接口存储有序且可重复的元素。 5、 Set集合查询效率低,但插入和删除效率高,且不会导致元素位置变化(如 ...
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今日热点
Trump signs funding bill
Migrant boat collision
HK firm begins arbitration
Demands $1B in damages
3 Alberta players killed
Raw milk health warning
Returns from calf injury
Disney names new CEO
‘Sherri’ talk show canceled
To ban hidden door handles
To compete in Olympics
PayPal appoints new CEO
To buy Webster Financial
Illinois joins WHO network
Pleads not guilty
Ex-husband charged
Renee Good's brothers testify
Renewed for season 3
Wins arbitration battle
To quit House of Lords
Japan battles winter storms
Announces run for governor
Reaches $1T market value
US shoots down Iranian drone
To carry US flag at Olympics
CEO testifies before Senate
Steps down from WH post
To invest in $1B in US market
Pleads not guilty to rape
Mexico, US reach deal
Mitch McConnell hospitalized
No ICE presence planned
NY, NJ sue Trump admin
To deploy observers for ICE
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