Question

我有这个班级建筑师:

public Category(int max){
...
}

究竟是,我想作一阵,我是如何开始这样做的?

private Category categories = new Category(max)[4];

没有工作。

<><>>>>>><>>>>>><>>>>>

我是否需要这样做?

private Category[] categories = new Category[4];

之后,每个物体先入门?

Answer 1

When you are making an array , you are creating an array of Category. That s an instance of array.

当你用类物体填满阵列时,你使用“Const”类。

Category [] categories = new Category[4];
categories[0] = new Category(10);

Answer 2

你们也可以在网上这样做,既使阵列,又使其拥有与其建筑商一起启动的价值。你们有一个称为“田”的班子,拥有两个参数的建筑商,你想建造一系列这样的东西......

Field[] fields = new Field[]{
    new Field(1, "Record_Type"),
    new Field(3, "Record_SubType"),
    new Field(6, "Row_Number"),
    ...
};

Answer 3

private Category[] categories = new Category[4];

Will be instantiated with 4 null categories, you have to fill the content yourself later.
Or you can try:

private Category[] categories = {new Category(max), new Category(max), new Category(max), new Category(max)};

Answer 4

最初作为阵列开始

Category[] categories = new Categories[4];
categories[0] = new Category(max);

然后先确定每个要素。