java笔试――选择题

这可让他犯了难，施工现场距离项目部很远，没有车还真是不方便office,branchoffices(jurisdiction),riskmanagement,marketingmanagementsectorthroughsupervisionandinspectionfoundproblems,shouldbeassignedtheinvestigatorsarecorrectedinatimelymanner.27ththefifthchapterpenaltyunderanyofthefollowingacts,thentherelevantprovisionstopunishtheinvestigators,accordingtotheBank.Toconstituteacrimeshallbeinvestigatedforcriminalresponsibility:(A)onthebusinessthatarenotinvolvedintheinvestigation,issuedasurvey.(B)customercreditinformationarenotthoroughverification.(Iii)toparticipateincreditcustomersurveyisnotinplace,customersanddataisincomplete,untrue;heknowsbearacounterfeitedclientsissuingcredit.(D)doesnotprovideforduediligenceofcreditbusiness,pre-loaninvestigationform,concealingfactsorprovidingfalseinformationorshouldbefoundinanormalinvestigationfailedtodiscovertheriskfactors,leadtothereviewandapprovalpolicyerrors,loanrisk.(Five)onloanguaranteesofsurveynotinplace,notbyprovidesonarrived,andpledgerealforfieldverification,andassessment,andidentificationandregistration,notaccordingtoprovidesonguarantorofguaranteesqualificationandguaranteescapacityforsurveyverified,ledtoguaranteesloanlostauthenticity,andlegitimacy,andeffectivenessof;cycleloanbusinessintheofmortgageJava基础笔试题一．选择题(共50题，每题2分，共100分。多选题选不全或选错都不得分。)1．以下属于面向对象的特征的是（C,D）。（两项）A)重载B)重写C)封装D)继承2．以下代码运行输出是（C）publicclassPerson{privateStringname=”Person”;intage=0;}publicclassChildextendsPerson{publicStringgrade;publicstaticvoidmain(String[]args){Personp=newChild();System.out.println(p.name);}}A)输出：PersonB)没有输出C)编译出错D)运行出错解答：子类不能访问父类私有成员3．在使用super和this关键字时，以下描述正确的是（A）A)在子类构造方法中使用super（）显示调用父类的构造方法，super（）必须写在子类构造方法的第一行，否则编译不通过B)super（）和this（）不一定要放在构造方法内第一行C)this（）和super（）可以同时出现在一个构造函数中D)this（）和super（）可以在static环境中使用，包括static方法和static语句块4．以下对封装的描述正确的是（D）A)只能对一个类中的方法进行封装，不能对属性进行封装B)如果子类继承了父类，对于父类中进行封装的方法，子类仍然可以直接调用C)封装的意义不大，因此在编码时尽量不要使用D)封装的主要作用在于对外隐藏内部实现细节，增强程序的安全性5．以下对继承的描述错误的是（A）A)Java中的继承允许一个子类继承多个父类B)父类更具有通用性，子类更具体C)Java中的继承存在着传递性D)当实例化子类时会递归调用父类中的构造方法6．以下程序的运行结果是（D）classPerson{publicPerson(){System.out.println(“thisisaPerson”);}}这可让他犯了难，施工现场距离项目部很远，没有车还真是不方便office,branchoffices(jurisdiction),riskmanagement,marketingmanagementsectorthroughsupervisionandinspectionfoundproblems,shouldbeassignedtheinvestigatorsarecorrectedinatimelymanner.27ththefifthchapterpenaltyunderanyofthefollowingacts,thentherelevantprovisionstopunishtheinvestigators,accordingtotheBank.Toconstituteacrimeshallbeinvestigatedforcriminalresponsibility:(A)onthebusinessthatarenotinvolvedintheinvestigation,issuedasurvey.(B)customercreditinformationarenotthoroughverification.(Iii)toparticipateincreditcustomersurveyisnotinplace,customersanddataisincomplete,untrue;heknowsbearacounterfeitedclientsissuingcredit.(D)doesnotprovideforduediligenceofcreditbusiness,pre-loaninvestigationform,concealingfactsorprovidingfalseinformationorshouldbefoundinanormalinvestigationfailedtodiscovertheriskfactors,leadtothereviewandapprovalpolicyerrors,loanrisk.(Five)onloanguaranteesofsurveynotinplace,notbyprovidesonarrived,andpledgerealforfieldverification,andassessment,andidentificationandregistration,notaccordingtoprovidesonguarantorofguaranteesqualificationandguaranteescapacityforsurveyverified,ledtoguaranteesloanlostauthenticity,andlegitimacy,andeffectivenessof;cycleloanbusinessintheofmortgagepublicclassTeacherextendsPerson{privateStringname=”tom”;publicTeacher(){System.out.println(“thisisateacher”);super();}publicstaticvoidmain(String[]args){Teacherteacher=newTeacher();System.out.println(this.name);}}A)thisisaPersonthisisateachertomB)thisisateacherthisisaPersontomC)运行出错D)编译有两处错误7．以下说法错误的是（D）A)super.方法（）可以调用父类的所有非私有方法B)super（）可以调用父类的所有非私有构造函数C)super.属性可以调用父类的所有非私有属性D)this和super关键字可以出现在同一个构造函数中8．以下关于final关键字说法错误的是（A,C）（两项）A)final是java中的修饰符，可以修饰类、接口、抽象类、方法和属性B)final修饰的类肯定不能被继承C)final修饰的方法不能被重载D)final修饰的变量不允许被再次赋值9．访问修饰符作用范围由大到小是（D）A)private-default-protected-publicB)public-default-protected-privateC)private-protected-default-publicD)public-protected-default-private10．以下（D）不是Object类的方法A)clone（）B)finalize（）C)toString（）D)hasNext（）11．多态的表现形式有（A）A)重写B)抽象C)继承D)封装12．以下对重载描述错误的是（B）A)方法重载只能发生在一个类的内部B)构造方法不能重载C)重载要求方法名相同，参数列表不同这可让他犯了难，施工现场距离项目部很远，没有车还真是不方便office,branchoffices(jurisdiction),riskmanagement,marketingmanagementsectorthroughsupervisionandinspectionfoundproblems,shouldbeassignedtheinvestigatorsarecorrectedinatimelymanner.27ththefifthchapterpenaltyunderanyofthefollowingacts,thentherelevantprovisionstopunishtheinvestigators,accordingtotheBank.Toconstituteacrimeshallbeinvestigatedforcriminalresponsibility:(A)onthebusinessthatarenotinvolvedintheinvestigation,issuedasurvey.(B)customercreditinformationarenotthoroughverification.(Iii)toparticipateincreditcustomersurveyisnotinplace,customersanddataisincomplete,untrue;heknowsbearacounterfeitedclientsissuingcredit.(D)doesnotprovideforduediligenceofcreditbusiness,pre-loaninvestigationform,concealingfactsorprovidingfalseinformationorshouldbefoundinanormalinvestigationfailedtodiscovertheriskfactors,leadtothereviewandapprovalpolicyerr