How to store multiple datatypes in an array?

Question

I\'m looking for something like an Array, but it needs to store multiple data types. The Oracle Java tutorials says, \"An array is a container object that holds a fixed numb

Answer 1

You can create an array of your Custom-Class.

public class YourCustomClass {

     String id;
     String name;
     double longitude;
     // and many more fields ...

    public YourCustomClass() {  // constructor 

    }

    public void setID(String id) {
        this.id = id;
    }

    public String getID() {
        return id;
    }

    // and many more getter and setter methods ...
}

Inside your custom-class you can have as many fields as you want where you can store your data, and then use it like that:

// with array 
YourCustomClass [] array = new YourCustomClass[10];
array[0] = new YourCustomClass();
array[0].setID("yourid");

String id = array[0].getID();

// with arraylist
ArrayList arraylist = new ArrayList();
arraylist.add(new YourCustomObject());
arraylist.get(0).setID("yourid");

String id = arraylist.get(0).getID();

You can also let the AsyncTasks doInBackground(...) method return your Custom-class:

protected void onPostExecute(YourCustomClass result) {
 // do stuff...
}

Or an array:

protected void onPostExecute(YourCustomClass [] result) {
 // do stuff...
}

Or a ArrayList:

protected void onPostExecute(ArrayList result) {
 // do stuff...
}

Edit: Of course, you can also make a ArrayList of your custom object.