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1、一、类图和流程图1、类图总类是Article包括两个分类，分别是word和wordcompare2、流程图创建类总类输入文章内容保存文章内容保存单词集合到数组同时统计单词的个数统计相同单词的词频按词频将词数组和词频数组进行降序排序按排序输出二、程序代码importjava.util.ArrayList;//引用importjava.util.Collections;importjava.util.Comparator;importjava.util.Iterator;importjava.util.List;importjava.util.Set;importjava.u
2、til.TreeSet;publicclassArticle{//建立总类ArticleStringcontent;//保存文章内容String[]rawWords;//保存单个单词集合String[]words;//保存各个单词对应的词频int[]wordFreqs;//输入文章内容publicArticle(){content="TrustedComputerSystem(TrustedComputerSystem)oftheU.S.Department"+"ofDefenseisaconceptfirstputforwardinordertoensurethecon
3、fidentialityof"+"computersystems,theU.S.DepartmentofDefenseinthe1980s,asetofaccesscontrol"+"mechanismstoenhancethecredibilityofthesystemAndthedevelopmentoftheTrusted"+"ComputerSystemEvaluationcriteria(TCSEC).TCSEC((fromtheOrangeBooktotheRainbowseries)"+"fortheinformationsystemsofseveralke
4、ycomponents:computeroperatingsystems,databases,"+"computernetworksecurityareputforwardacredibleevaluationofthesafetyguidelines."+"Norms,fromtheuserlogontoempowerthemanagement,Accesscontrol,audittrails,"+"hiddenchannels,thecredibilityofthecomputer-systemsRoad,theestablishmentofelectronic"+
5、"informationsystems,safetyinspection,protectionofthelifecycle,textwriting,"+"User'sGuidehavemaderegulatoryrequirements.Andinaccordancewiththesecuritypolicies"+"adoptedbythesystembyWiththesafetyfeaturesofthesystemisdividedintoA,B(BLB2,B3),"+"C(Cl,C2),Dfouroftheseven-levelsecurity.Theseguid
6、elinesfortheresearch-oriented,"+"standardizedproduction,guidingtheuserselectionoftheinspectionbodiesBasedontheevaluation,"+"allplayedaroleinpromotingthegood.Butthemainconsiderationofsecurityissuesingeneralis"+"alsolimitedtotheconfidentialityofinformation,basedonthesecuritymodel:"+"Bell&La
7、padIliasecuritymodeldevelopedbythemostimportantsecurity(secrecy):"+"Strictlyonreading,writingunderthe(noreadupnowritedown)"+"isthemainmessagefortherequestforconfidentiality.90ofthefourcountries"+"inWesternEurope(Britain,France,GermanyandtheNetherlands)alsomadeinform
