更多"下面程序的正确输出是( )。 Publicclasshello "的相关试题:
[填空题]下面程序段的输出结果是______。
publicclassTest
publicstaticvoidmain(Stringargs[])
inti=1;
switch(i)
case0:
System.out.println("0");
break;
casel:
System.out.println("1");
case2:
System.out.println("2");
break;
default:
System.out.println("default");
[单项选择]下面程序输出的结果是什么 ( ) public class Quiz2 { public static void main(String args[]) { try {throw new MyException( ); }catch(Exception e) { System.out.println("It’s caught!"); }finally{ System.out.println("It’s finally caught!"); } } } class MyExeeption extends Exception{}
A. It’s finally caught!
B. It’s caught!
C. It’s caught!/It’sfinally caught!
D. 无输出
[单项选择]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;
q=new B;
A. CLASS A
B. CLASS A
C. CLASS A
D. CLASS A
[单项选择]下面程序输出的结果是( )。
#include<iostream>
using namespace std;
int fuc (char *x);
int main( )
cout<<fuc("hello")<<endl;
return 0;
int fuc(char *x)
char *y=x;
while(*y! =’/0’)y++;
return(y-x);
A. 5
B. 6
C. 0
D. 语法错误,不能输出结果
[单项选择]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
B. CLASS A
C. CLASS A
D. CLASS A
[填空题]下面程序输出的结果是 【11】 。
#include <iostream>
using namespacc std;
class A {
public:
void show( ){tout<<"A!";}
};
class B: public A{
public:
virtual void show( ){cout<<"B!";}
};
class C: public B{
public:
virtual void show( ){cout<<"C!";}
};
void show_info(A *i){i->show( );}
void main( ){
A ia;B ib;C ic;show_info(&ia); show_info(&ib);show_info(&ic);
}
[填空题]下面程序输出的结果是 【10】 。
#include <iostream>
using namespace std;
class A {
public:
virtual void show( ) {cout<<"A!";
};
class B: public A {
public:
void show( ) {cout << "B!";}
};
class C: public B{
public:
void show( ){cout << "C!";}
};
void show_info(A &i) {i. show( );}
void main( ) {
A ia; B ib; C ic; show_info(ia);show_info(ib); show_info(ic); }
[简答题]给出下面程序输出结果。
#include<iostream.h>
class Base
private:
int Y;
public:
Base(int y=0)y=y;cout<<"Base("<<y<<")/n";
~Base( )cout<<"~Base( )/n";
void print( )cout<<Y<<" ";
;
class Derived:public Base
private:
int Z;
public:
Derived(int y,int z):Base(y)
Z=z;
cout<<"Derived("<<y<<","<<z<<")/n";
~Derived( )cout<<"~Derived( )/n";
void print( )
Base::print( );
cout<<Z<<endl;
;
void main( )
Derived d(10,20);
d.print( );
[单项选择]下面程序输出的结果为( )。
#include"iostream.h"
classA
{public:
A(){cOUt<<"CLASSA"< ~A(){}};
ClaSSB:publicA
{public:
B(){cout<<"CLASSB"< ~B(){}};
voidmain()
{A*P;
P=newB:
B*q:
q=newB;}
A. CLASSA
B. CLASSA
C. CLASSA
D. CLASSA
[单项选择]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;
q=new B;
}
A. DEHNE POPUP<菜单名>
B. DEFINE MENU<菜单名>
C. DEHNE PAD<菜单名>
D. DEFINE BAR<菜单名>