CassDefaultAssign.cpp

class BB
{
private:
    int aa, bb;
public:
    BB():aa(1),bb(5)  //note: check about default value assign aa, bb depends on compiler. DON'T WRITE LIKE THAT
    {
        printf("Print out value aa = %d, bb=%d \n", aa, bb);
        bb = aa;
        printf("Print out value bb = %d \n", bb);
    }
};