如何初始化自己类型的Java数组

Question

I have this

Integer[] picIDs = {             
  R.drawable.whatever
  ,
  R.drawable.example
};
String[] picDescs = {
  "test1"
  ,
  "test2"      
};    

Originally I wanted to make an array of a datatype containing fields "id" and "desc", but it seems impossible to initialize such arrays in declaration? (I was not able to Google how-to.) Is that really so?

Answer 1

how about this?

YourType[] arr = {new YourType(12,"abc"), new YourType(13, "xyz")};

But make sure you have a Constructor of Yourtype which accepts an int (id) and String as arguments.

public class YourType{
String s;
int id;
    public YourType(int id, String s){
    this.id = id; 
    this.s = s;
    }

}

Answer 2

You can do something like this:

public class Item {
    public int id;
    public String desc;
    public Item(int id, String desc) {
        this.id = id;
        this.desc = desc;
    }
}

Item[] items = {
    new Item(1, "one"),
    new Item(2, "two")
    // etc.
};

Answer 3

你有没有试过这样的：

MyClass[] array={new MyClass(),new MyClass()};

Answer 4

class DataType {  
    private Integer id;  
    private Stirng desc;  
    public DataType(Integer id, String desc) { this.id = id; this.desc = desc;}  
}  

DataType[] dt = {new DataType(id1, desc1), new DataType(id2, desc2) and so on};   

So, you can define a class such as DataType and then just initialize anonymous instances of DataType in a DataType array.