一个类的对象数组

Question

#include<iostream.h>
class test{
    int a;
    char b;
public:
    test()
    {
        cout<<"\n\nDefault constructor being called";
    }
    test(int i,char j)
    {
        a=i;
        b=j;
        cout<<"\n\nConstructor with arguments called";
    }
};
int main()
{
    test tarray[5];
    test newobj(31,'z');
};

在上面的代码片段中我们可以将值初始化为tarray[5]？

Answer 1

test  tarray[5] = {test(1, 2), test(), test(5, 6), test()};

第五个元素将使用默认构造函数初始化.

//here length of array will be inferred from number of initializers,
//   so it's going to be 4
test  tarray[] = {test(1, 'a'), test(), test(5, 'b'), test()};