下列程序的输出结果是( )。#include<iostream.h>class Myclass {public:Myclass(int i=0,intj=0){ x=i;y=j;}void show( ) { cout < < x= < < x < < < y= < < y < < end1;}void show( )const { cout < < x= < < < < y=’’ < < y < < end1;}privated:int x; int y;};void main( ){ Myclass my1(3,4);const my2(7,8);my1.show( );my2.show( );}
A.line 4
B.line 6
C.line 7
D.line 8