网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

Giventhefollowingcode:1)classParent{2)privateStringname;3)publicParent(){}4)}5)publicclassChildextendsParent{6)privateStringdepartment;7)publicChild(){}8)publicStringgetValue(){returnname;}9)publicstaticvoidmain(Stringarg[]){10)Parentp=newParent();11)}12)}Whichlinewillcauseerror?()

A.line3

B.line6

C.line7

D.line8

E.line10


参考答案

更多 “ Giventhefollowingcode:1)classParent{2)privateStringname;3)publicParent(){}4)}5)publicclassChildextendsParent{6)privateStringdepartment;7)publicChild(){}8)publicStringgetValue(){returnname;}9)publicstaticvoidmain(Stringarg[]){10)Parentp=newParent();11)}12)}Whichlinewillcauseerror?()A.line3B.line6C.line7D.line8E.line10 ” 相关考题
考题 给出下面代码: 1)classParent{ 2)privateStringname; 3)publicParent(){} 4)} 1、5)publicclassChildextendsParent{ 6)privateStringdepartment; 1、7)publicChild(){} 8)publicStringgetValue(){returnname;} 9)publicstaticvoidmain(Stringarg[]){ 10)Parentp=newParent(); 11)} 12)} 那些行将引起错误?()A.第3行B.第6行C.第7行D.第8行

考题 有如下程序:#includeusing namespace std;class PARENT{public:PARENT(){cout"PARENT";}};class SON:public PARENT{public:SON(){cout"SON";}};int main(){SON son;PARENT *p;p = son;return 0;}执行上面程序的输出是 【 12 】 。

考题 What is the contra positive of the relation represented in the exhibit shown below?A.R= {1,2, 1,3,1,4,1,5}B.R= { 1,1,2,2,3,3,4,4,5,5}C.R= {2,1 ,4,1,2,2,1,3,3,2,1,4,4,4,5,4}D.R= {1,2,3,1,1,4,2,2,2,3,4,1,4,4,4,5}

考题 publicclassPerson{2.privateStringname;3.publicPerson(Stringname){this.name=name;}4.publicbooleanequals(Personp){5.returnp.name.equals(this.name);6.}7.}Whichistrue?() A.TheequalsmethoddoesNOTproperlyoverridetheObject.equalsmethod.B.Compilationfailsbecausetheprivateattributep.namecannotbeaccessedinline5.C.Toworkcorrectlywithhash-baseddatastructures,thisclassmustalsoimplementthehashCodemethod.D.WhenaddingPersonobjectstoajava.util.Setcollection,theequalsmethodinline4willpreventduplicates.

考题 classParent{Stringone,two; classParent{Stringone,two;publicParent(Stringa,Stringb){one=a;two=b;}publicvoidprint(){System.out.println(one);}}publicclassChildextendsParent{publicChild(Stringa,Stringb){super(a,b);}publicvoidprint(){System.out.println(one+to+two);}publicstaticvoidmain(Stringarg[]){Parentp=newParent(south,north);Parentt=newChild(east,west);p.print();t.print();}}Whichofthefollowingiscorrect?()

考题 Giventhefollowingcode:1)publicvoidmodify(){2)inti,j,k;3)i=100;4)while(i0){5)j=i*2;6)System.out.println(Thevalueofjis+j);7)k=k+1;8)i--;9)}10)}Whichlinemightcauseanerrorduringcompilation?()A.line4B.line6C.line7D.line8

考题 有如下程序: include using namespace std; class PARENT { public: PARENT() { cout 有如下程序:include <iostream>using namespace std;class PARENT{public:PARENT() { cout <<"PARENT"; }};class SON : public PARENT{public:SON() {cout << "SON"; }};int main(){SON son;PARENT *p;p = son;return 0;}执行上面程序的输出是______。

考题 一个 java源文件可以定义几个public class?()。A.0B.1C.2D.3

考题 一个 java源文件可以定义几个public class?A.0B.1C.2D.3