I have the same problem like this post Create an arraylist with multiple object types?
I have a list of objects: List<Object[]> and I would have List<String,Float>
and I want do like the reply of GV that I make a custom model class with two parameters one Integer and other String. Then using an ArrayList of that object.
but I don't know how can I return this List with a multiple types.
You don't want to create a List<String,Float> (not to mention it's impossible). Instead, as you allude, you want to create a custom class that holds a String and an Integer, and create a list of that.
For instance:
public class Model {
private final String name;
private final int count;
public Model(String n, int count) { ... }
public String getName() { ... }
public int getCount() { ... }
}
Now you can create List<Model> instances containing the data you need.
List<Model> ls = new ArrayList<>();
ls.add(new Model("Jim", 10));
If you create an object with properties of type String and Integer then you can use the List of that object type.
class YourObject{
String s;
Integer i;
// Contructor(s) and stuff...
}
and then:
List<YourObject> list = new ArrayList<YourObject>();
O hope that helps.
or if you really really want to have a list of objects, when you get th object from the list you can check its type using instanceof
List<YourCustomModelClass>and anotherList<WhateverYouMayStoreHere>.Map<String,Float>work? Otherwise aList<YourCustomWrapper>