Java：创建一个 2D ArrayList 来存储整数和字符串？
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Java: Creating a 2D ArrayList to store an integer and string?
提问by Cryssie
I need to store 2 arrays of values that are connected to each other. The arrays consists of a set of strings and a set of integer/double values. The size of the data are not fixed.
我需要存储 2 个相互连接的值数组。数组由一组字符串和一组整数/双精度值组成。数据的大小不是固定的。
An example:
一个例子：
Data 1: AA, 13
Data 2: BB, 6
Data 3: GG, 2
I am trying to look at 2D Arrays. Is there a better way to store the values? There's a possibilities that I might need multidimensional arrays to store the values as well. Can anyone point me in the right direction or show me a way to create the 2D arrays and how to add/retrieve the elements?
我正在尝试查看二维数组。有没有更好的方法来存储值？有可能我也需要多维数组来存储值。谁能指出我正确的方向或向我展示一种创建二维数组的方法以及如何添加/检索元素？
回答by Makoto
回答by TaherT
You can also use like this there are two ways if you want only ArrayList as a datastructure create a class like this :
如果您只想将 ArrayList 作为数据结构创建一个这样的类，您也可以像这样使用有两种方法：
public Class Data{
private String myString;
private Integer myInteger;
public String getMyString() {
return myString;
}
public void setMyString(String myString) {
this.myString = myString;
}
public Integer getMyInteger() {
return myInteger;
}
public void setMyInteger(Integer myInteger) {
this.myInteger = myInteger;
}
}
List<Data> list = new ArrayList<Data>();
or else you can use like this
List<Object[]> list = new ArrayList<Object[]>();
