A.interface
B.static
C.final
D.abstract
[单选题]下列是定义一个接口ITF的程序,在横线处应填入的选项是 ( ) public interface ITF { public static final double PI=3.14; public( )double area(double a,double b); }A.interfaceB.staticC.finalD.abstract
[单选题]下列是定义一个接口ITF的程序,在横线处应填入的选项是( )。 publid interface ITF { public static final double PI=3.14; public______double area(double a,double B) ; }A.interfaceB.staticC.finalD.abstract
[单选题]下列是定义一个接口ITF的程序,在横线处应填入的选项是 pubic interface ITF { public static final double PI=3.14; public________ double area(double a,double b); }A.interfaceB.staticC.finalD.abstract
[单选题]下列程序中横线处应填入的语句是( )。 Class Base { public: roid fun(){cout<<“Base of fun”<<endl;) }; class Derived:public Base { void fun() { //显示基类的成员函数fun cout<<“Derived Of fun”<<endl; } };A.fun();B.Base.fun();C.Base::fun();D.Base->fun();
[单选题]在下面的类定义中,横线处应填入的内容是 class Fred { public: void print(){cout<<data<<endl;} void setData(double d)(data=d;} static int count; private: double data; }; count=0; //静态数据成员的定义A.intB.static intC.int Fred::D.static int Fred::
[单选题]在下面的类定义中,横线处应填入的内容是 class Fred { public: void print () { cout<<data<<end1;} void setData (double D) {data=d; static int count; private: double data; };______count=0; //静态数据成员的定义A.intB.static intC.int Fred::D.static int Fred::
[单选题]在下面的类定义中,横线处应填入的内容是( )。 class Fred { public: void print(){cout<<data<<end1;} void setData(double d}{data=d;} static int count; private: double data; }; ______count=0; //静态数据成员的定义A.intB. static intC.int Fred::D. static int Fred::
[单选题]( 30 )在程序的下划线处应填入的选项是public class Test _________{public static void main(String args[]){Test t = new Test();Thread tt = new Thread(t);tt.start();}public void run(){for(int i=0;i<5;i++){system.out.println( " i= " +i);}}}A. ) implements RunnableB.
[单选题]在下面程序的下画线处应填入的选项是 public class Test______{ public static void main(String args[]) { Test t=new Test(); Thread tt=new Thread(t); tt.start(); } public void run() { for(int i=0;i<5;i++) System.out.println("i="+i); } }A.implements RunnableB.extends Thr
[单选题]下列程序中画线处应填入的语句是class Base{public:void fun(){cout <<”Base of fun”<};class Derived:public Base{void fun(){//显示基类的成员函数funcout <<”Derived of fun”<};A.fun();B.Base. fun();C.Base::fun();D.Base- >fun-: