Java 中 ArrayList 的 Getter 和 Setter [英] Getters and Setters for ArrayLists in Java

问题描述

我将如何在 Java 中为 ArrayList 使用 getter 和 setter?这是我所拥有的.我想我正确地使用了 getter，但我不知道如何为 ArrayList 使用 setter.

How would I go about using getters and setters for an ArrayList in Java? Here is what I have. I think I am using the getter correctly, but I don't know how to use a setter for an ArrayList.

private ArrayList<String> stringlist = new ArrayList<String>();
public ArrayList<String> getStringList() {
    return stringlist;
}

public ArrayList<String> setStringList() {
    // I don't know what to put here
    // I also don't know if my return value is correct
}

推荐答案

要设置值，您需要将 ArrayList 作为参数传递，您只需设置 ArrayList 到参数.

To set the value, you would take an ArrayList<String> passed as a parameter, and you would simply set the ArrayList to the parameter.

另外，请注意使用 void 而不是您的问题中显示的 ArrayList.通常，setter 方法不返回任何内容.

Also, note the use of void rather than the ArrayList<String> shown in your question. Commonly, a setter method does not return anything.

public void setStringList(ArrayList<String> stringList)
{
    this.stringList = stringList;
}

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