为什么在 C++ 中使用 `cin >> size` 获取值后不能初始化数组

如何解决为什么在 C++ 中使用 `cin >> size` 获取值后不能初始化数组

所以我过去一年在学校一直在学习 Java，但现在我正在尝试自学 C++，但我很困惑。我想创建一个用户想要的任何大小的数组。但是我不能像在 Java 中那样做，我想知道为什么以及如何在 C++ 中做到这一点。

int main(){
int numOfCylinders = 1;
cout << "Welcome to the Cylinder Sorter!\n How many cylinders are we creating?\n";
cin >> numOfCylinders;

const int SIZE = numOfCylinders;

Cylinder cylinder[SIZE]; // First i tried making the size of the array equal to numOfCylinders but it 
                         // it said it needed to be a constant value. I then made a const int variable
                         // called SIZE and assigned its value equal to numOfCylinders hoping that it
                         // would be a work around to my current issue.
                         
while (true) {
    for (int i = 0; i < numOfCylinders; i++) {
        cout << "Enter the a character for Cylinder " << i;
        cin >> cylinder[i].setName();
    }
    //rest of code isnt written
}

}

如果这没有任何意义，我很抱歉...