class One { public One foo() { return this; } } class Two extends One { public One foo() { return this; } } class Three extends Two { // insert method here } Which two methods, inserted individually, correctly complete the Three class?()
第1题:
有如下程序:
include <iostream>
using namespaee std;
class ONE{
public:
virtual void f( ){cout<<"1";}
};
class TWO:public ONE{
public:
TWO( )1 cout<<"2";}
{;
class THREE:public TWO{
public:
virtual void f( )}TWO::f( );cout<<"3";}
};
int main( ){
ONE aa,*P;
TWO bb;
THREE cc;
P=&cc;
p->f( );
return 0;
}
程序的输出结果是______。
第2题:
22.I am in _________ .
A. Grade One
B. eight
C. my friend
D. Class One
第3题:
A、Everybody
B、Everyone
第4题:
有如下程序:
include <iostream>
using namespace std;
class ONE
{
public:
virtual void f() { cout << "1"; }
};
class TWO: public ONE
{
public:
TWO() { cout << "2"; }
};
class THREE: public TWO
{
public:
virtual void f() {TWO::f(); cout << "3"; }
};
int main()
{
ONE aa, *p;
TWO bb;
THREE cc;
p=&cc;
P->f();
return 0;
}
执行上面程序的输出是【 】。
第5题:
Eponyms is a process that puts an existing word of one class into another class.()
第6题:
( 35 )有如下程序:
#include<iostream>
using namespace std;
class ONE{
int c;
public:
ONE ( ) : c ( 0 ) {cout<<1;}
ONE ( int n ) : c ( n ) {cout<<2;}
};
class TWO{
ONE onel;
ONE one2;
public:
TWO ( int m ) : one2 ( m ) {cout<<3;}
};
int main () t
TWO t ( 4 )
return 0
}
运行时的输出结果是
A ) 3
B ) 23
C ) 123
D ) 213
第7题:
阅读下列代码 public class Test{ String s="One World One Dream"; public static void main(String args[]){ System. out. println(s); } } 其运行结果是
A.args
B.One World One Dream
C.s
D.编译时出错
第8题:
有如下程序:
#include
using namespace std;
class ONE
{
public:
virtual void f(){cout<<"l";}
};
class TWO:public ONE
{
public:
TWO(){cout<<"2";}
};
class THREE:public TWO
{
public:
virtual void f(){TWO::f(); cout<<"3";}
};
int main()
{
ONE aa, *p;
TWO bb;
THREE cc;
p = &cc;
p->f();
return 0;
}
执行上面程序的输出是 【 11 】 。
第9题:
Lucy and Lily is both in Class One.()
第10题:
one of the distinctive features about the british class system is that it has also retained a hereditary aristocracy. ()