In Javascript we can define an object like this 👇

let obj={
    property1:67,
    func1: function (){
        //Some code
    }
}

Now if we want add a new property to obj I can just add a new property like this

obj.property2=733; //some value or function

Now I want to do the same thing in Java also.

I have a class Test 👇

public class Test{
    int property1=67;
    public void func1(){
        //Some code
    }
}

Now is it possible to do like the same thing like statement #2 in Java also?

Edit: From the answers I got to know that we can use a Map for properties. Now I want to know for methods. Thanks