How to initialize an array of objects in C++

There are two ways to initialize an array of objects in C++.

1. Initialize the array elements using the default constructor: for constructors with no parameters, you can directly use curly braces initialization list. For example:

class MyClass {
public:
    MyClass() {
        // 默认构造函数
    }
};

int main() {
    MyClass array[5] = {}; // 初始化包含5个MyClass对象的数组
    return 0;
}

1. Initializing array elements using parameterized constructor: For constructors with parameters, you can initialize using braces initialization list and parameter list. For example:

class MyClass {
public:
    MyClass(int value) {
        // 带参数的构造函数
    }
};

int main() {
    MyClass array[5] = {1, 2, 3, 4, 5}; // 初始化包含5个MyClass对象的数组，每个对象使用不同的参数值
    return 0;
}

When initializing a list using braces, if the number of elements is less than the size of the array, the uninitialized elements will be initialized using the default constructor.