C++ Class returning old values? -

i can't seem figure out why code,

class test{     public:     int number;     test(int pass){       number = pass;     } };  int main(){    test x(3);    test y(2);    test z[2]={x,y};    y.number = 1;    cout << "z[0].number: " << z[0].number << endl;    cout << "z[1].number: " << z[1].number << endl;    cout << "x.number: " << x.number << endl;    cout << "y.number: " << y.number << endl;    return 0; } 

comes output,

z[0].number: 3 z[1].number: 2 x.number: 3 y.number: 1 

instead of one,

z[0].number: 3 z[1].number: 1 x.number: 3 y.number: 1 

how can make second output possible? i've searched 3 days, , still no luck :(

when say:

test z[2] = {x, y}; 

z holds 2 copy-constructed instances of test. since didn't put in copy constructor, uses default, copies data members. thus, z contains copy of x , copy of y. that's why changing y doesn't change what's in z. it's not java reference.