2025年Java集合框架深度解析測試卷考試時間：______分鐘總分：______分姓名：______一、選擇題1.下列哪個接口是所有集合框架的根接口？2.ArrayList和LinkedList的主要區(qū)別是什么？3.HashSet的底層數(shù)據(jù)結(jié)構(gòu)是什么？4.HashMap和ConcurrentHashMap的主要區(qū)別是什么？5.Whichofthefollowingcollectionclassesallowsduplicateelements?6.Whichofthefollowingcollectionclassesissynchronized?7.Theiteratorcanbeusedtoremoveelementsfromacollection.8.Whichmethodisusedtoaddallelementsofonecollectiontoanother?9.Whichcollectionclassisthebestchoiceformaintaininginsertionorder?10.Whichcollectionclassisthebestchoiceformaintainingsortedorder?11.TheSetinterfaceinheritsfromtheCollectioninterface.12.TheListinterfaceinheritsfromtheCollectioninterface.13.TheQueueinterfaceinheritsfromtheCollectioninterface.14.TheDequeinterfaceinheritsfromtheQueueinterface.15.Whichofthefollowingisaconcurrentcollectionclass?16.Whichofthefollowingmethodsisusedtocheckifacollectionisempty?17.Whichofthefollowingmethodsisusedtogetthesizeofacollection?18.Whichofthefollowingmethodsisusedtoiterateoveracollection?19.Whichofthefollowingmethodsisusedtoaddanelementtoacollection?20.Whichofthefollowingmethodsisusedtoremoveanelementfromacollection?二、填空題1._______isacollectionthatcontainsnoduplicateelements.2._______isanorderedcollectionthatallowsduplicateelements.3._______isamapthatcannotcontainduplicatekeys.4._______isamapthatmaintainstheinsertionorderofitsentries.5._______isamapthatprovidesatotalorderingofitskeys.6._______isacollectionthatmaintainselementsinafirst-in,first-out(FIFO)order.7._______isacollectionthatmaintainselementsinalast-in,first-out(LIFO)order.8._______isathread-safecollection.9._______isacollectionthatallowsmultiplethreadstoaccessitconcurrently.10._______isamethodthatreturnsanarraycontainingalltheelementsinacollection.11._______isamethodthatreturnsastreamoftheelementsinacollection.12._______isamethodthatremovesalloftheelementsfromacollection.13._______isamethodthatreturnstrueifthiscollectioncontainsnoelements.14._______isamethodthatreturnstrueifthiscollectioncontainsthespecifiedelement.15._______isamethodthatreturnstheelementatthespecifiedpositioninthecollection.三、簡答題1.Explainthedifferencebetweenasetandalist.2.Explainthedifferencebetweenamapandaset.3.ExplainthedifferencebetweenArrayListandLinkedList.4.ExplainthedifferencebetweenHashMapandTreeMap.5.Whatisaconcurrentcollection?Givesomeexamplesofconcurrentcollectionclasses.6.Whatisthepurposeoftheiterator?7.Whatisthedifferencebetweentheadd()andoffer()methods?8.Whatisthedifferencebetweentheremove()andpoll()methods?9.Whatarethebenefitsofusingacollectioninsteadofanarray?10.Howcanyouimprovetheperformanceofacollection?四、編程題1.WriteaJavaprogramtocreatealistofintegers,addsomeelementstothelist,andthenprintthelist.2.WriteaJavaprogramtocreateasetofstrings,addsomeelementstotheset,andthenprinttheset.3.WriteaJavaprogramtocreateamapofstringstointegers,addsomekey-valuepairstothemap,andthenprintthemap.4.WriteaJavaprogramtosortalistofintegersinascendingorder.5.WriteaJavaprogramtofindthelargestelementinalistofintegers.6.WriteaJavaprogramtoremovealloccurrencesofaspecificelementfromalist.7.WriteaJavaprogramtocreateaconcurrentqueueofintegers,addsomeelementstothequeue,andthenprintthequeue.8.WriteaJavaprogramtouseastreamtofilteralistofintegersandprintthefilteredlist.9.WriteaJavaprogramtouseastreamtomapalistofstringstouppercaseandprinttheresult.10.WriteaJavaprogramtouseastreamtoreducealistofintegerstotheirsumandprinttheresult.試卷答案一、選擇題1.Collection2.底層數(shù)據(jù)結(jié)構(gòu)不同，ArrayList基于數(shù)組，LinkedList基于鏈表3.哈希表4.線程安全機制不同，HashMap非線程安全，ConcurrentHashMap線程安全5.List6.Vector,ArrayList(Java5及以后，ArrayList通過加鎖實現(xiàn)部分線程安全)7.是8.addAll()9.LinkedHashMap10.TreeMap11.是12.是13.是14.是15.ConcurrentHashMap,CopyOnWriteArrayList,CopyOnWriteArraySet16.isEmpty()17.size()18.iterator()19.add()20.remove()二、填空題1.Set2.List3.Map4.LinkedHashMap5.TreeMap6.Queue7.Stack8.Vector9.ConcurrentHashMap,CopyOnWriteArrayList,CopyOnWriteArraySet10.toArray()11.stream()12.clear()13.isEmpty()14.contains()15.get()三、簡答題1.Set是無序的，不允許重復(fù)元素；List是有序的，允許重復(fù)元素。2.Map是一個鍵值對集合，每個鍵對應(yīng)一個值；Set是一個不包含重復(fù)元素的集合。3.ArrayList基于數(shù)組，隨機訪問快，插入刪除慢；LinkedList基于鏈表，隨機訪問慢，插入刪除快。4.HashMap基于哈希表，查詢快，無序；TreeMap基于紅黑樹，查詢慢（基于鍵排序），有序。5.并發(fā)集合是線程安全的集合，允許多個線程同時訪問。例如：ConcurrentHashMap,CopyOnWriteArrayList,CopyOnWriteArraySet。6.迭代器是用于遍歷集合元素的接口，提供遍歷集合元素的方法，并允許在遍歷過程中修改集合。7.add()用于添加元素到集合末尾，返回布爾值；offer()用于添加元素到隊列末尾，返回布爾值，通常用于隊列。8.remove()用于刪除集合中的第一個匹配的元素，返回布爾值；poll()用于刪除并返回隊列的第一個元素，如果隊列為空，返回null。9.集合提供動態(tài)大小、方便的API、豐富的操作方法等優(yōu)勢，而數(shù)組大小固定，操作相對受限。10.選擇合適的集合類型、使用合適的遍歷方式、避免不必要的集合復(fù)制、使用并發(fā)集合等。四、編程題1.```javaimportjava.util.ArrayList;importjava.util.List;publicclassMain{publicstaticvoidmain(String[]args){List<Integer>list=newArrayList<>();list.add(1);list.add(2);list.add(3);System.out.println(list);}}```2.```javaimportjava.util.HashSet;importjava.util.Set;publicclassMain{publicstaticvoidmain(String[]args){Set<String>set=newHashSet<>();set.add("apple");set.add("banana");set.add("cherry");System.out.println(set);}}```3.```javaimportjava.util.HashMap;importjava.util.Map;publicclassMain{publicstaticvoidmain(String[]args){Map<String,Integer>map=newHashMap<>();map.put("apple",1);map.put("banana",2);map.put("cherry",3);System.out.println(map);}}```4.```javaimportjava.util.ArrayList;importjava.util.Collections;importjava.util.List;publicclassMain{publicstaticvoidmain(String[]args){List<Integer>list=newArrayList<>();list.add(3);list.add(1);list.add(2);Collections.sort(list);System.out.println(list);}}```5.```javaimportjava.util.ArrayList;importjava.util.List;publicclassMain{publicstaticvoidmain(String[]args){List<Integer>list=newArrayList<>();list.add(3);list.add(1);list.add(2);intmax=Integer.MIN_VALUE;for(intnum:list){if(num>max){max=num;}}System.out.println(max);}}```6.```javaimportjava.util.ArrayList;importjava.util.List;publicclassMain{publicstaticvoidmain(String[]args){List<Integer>list=newArrayList<>();list.add(1);list.add(2);list.add(3);list.add(2);list.remove(Integer.valueOf(2));System.out.println(list);}}```7.```javaimportjava.util.concurrent.ConcurrentLinkedQueue;importjava.util.concurrent.ConcurrentLinkedQueue;publicclassMain{publicstaticvoidmain(String[]args){ConcurrentLinkedQueue<Integer>queue=newConcurrentLinkedQueue<>();queue.add(1);queue.add(2);queue.add(3);System.out.println(queue);}}```8.```javaimportjava.util.ArrayList;importjava.util.List;importjava.util.stream.Collectors;publicclassMain{publicstaticvoidmain(String[]args){List<Integer>list=newArrayList<>();list.add(1);list.add(2);list.add(3);List<Integer>filteredList=list.stream().filter(num->num>1).collect(Collectors.toList());System.out.println(filteredList);}