A.hands
B.arms
C.hopes
D.happiness
第1题
下面程序输出的结果为 #include" iostream.h" class A { public: A() { cout < < "CLASS A" < < end1;} ~ A() { } }; class B:public A { public: B(){ cout < < "CLASS B" < < end1;} ~ B() { } }; void main() { A * p; p=new B; B * q;
A.CLASS A CLASS B
B.CLASS A CLASS B CLASS B
C.CLASS A CLASS B CLASS A CLASS B
D.CLASS A CLASS B CLASS B CLASS B
第2题
下面程序运行后的输出结果为() class A{ public int y=6; void showy(){ System.out.println("y="+y); } } class testA{ public static void main(String aaa []){ A a1 = new A(); A b1 = new A(); a1.y++; b1.showy(); } } 输出结果选择:
A、y=6
B、程序运行出错
C、y=8
D、y=7
第3题
下面程序输出的结果为 #include"iostream.h” class A { public: A(){cout<<"CLASSA"<<endl;} ~A() {} }; class B:public A { public: B(){cout<<"CLASS B"<<endl;} ~B(){} }; void main() { A*p; p=new B;
A.CLASS A CLASS B CLASS B CLASS B
B.CLASS A CLASS B CLASS A CLASS B
C.CLASS A CLASS B CLASS B
D.CLASS A CLASS B
第4题
下面程序输出的结果为 #include"iostream.h" class A { public: A(){cout<<"CLASSA"<<endl;} ~A() {} }; class B:public A { public: B(){cout<<"CLASSB"<<endl;} ~B() {} }; void main() { A * p; p=new B; B *q; q=new B; }
A.CLASS A CLASS B
B.CLASS A CLASS B CLASS B
C.CLASS A CLASS B CLASS A CLASS B
D.CLASS A CLASS B CLASS B CLASS B
第5题
下面程序输出的结果为
#include"iostream.h"
class A
{
public:
A(){cout<<"CLASS A"<<endl;}
~A(){}
};
class B:public A
{
public:
B(){cout<<"CLASS B"<<endl;}
~B(){}
};
void main()
{
A*p;
p=new B;
B *q;
q=new B;
}
A.CLASS A CLASS B
B.CLASS A CLASS B CLASS B
C.CLASS A CLASS B CLASS A CLASS B
D.CLASS A CLASS B CLASS B CLASS B
第6题
下面程序执行后的输出结果为()。 public class fun { public static void main(String args[]) { String greets = " How are you!"; String s = greets.substring(0,3); System.out.println(s); } }
A.How
B.are
C.you
D.how are you!
第7题
下面程序的输出结果为:Base:: fun,请将程序补充完整。
include <iostream.h>
class Base{
public:
【 】 fun(){cout<<"Base::fun"<<end1:}
class Derived : public Base{
public:
【 】 fun(){ cout<<"Derived::fun"<<end1; }
};
int main()
{
Base a,*pb;
Derived b;
pb = &b;
pb->fun();
return 0;
}
第8题
下面程序的输出结果为()。 public class Test { public static void main (String args[]) { String X="ABCD"; String Y="EFG"; X=X.substring (X.length()-Y.length()); System.out.println(X); } }
A.ABC
B.BCD
C.EFG
D.ABCDEFG
第9题
下面程序段的输出结果为 public class MyClass { public static void main(String args[]) { String s="Helto! How are you?"; System.out.println(s.lastlndexOf("o",16)); } }
A.16
B.o
C.u
D.17
第10题
下面程序段的输出结果为 public class MyClass { public static void main(String args[]) { String s="Hello! How are you?"; System.out.println(s.LastIndexOf("o",16); } }
A.16
B.o
C.u
D.17
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