I am new to Android. I wonder how to create an arraylist with multiple elements. I have a list like:
list1 = ["Circle", Color.WHITE, Color. BLACK, (20,20), (30,30), (40,40)];
This array contains String, int(the color) and coordinates. Is that available to put all of them into an arraylist. If so, how can I merge two lists together. Also, how can I get the value from it? I want to generate some list like above and do some code to merge(combine) them. Thanks!
It's not recommended to put different types into an arraylist. I think the best solution would be to put all your data (the String "Circle", the colors and the coordinates) into a new class and have an ArrayList with objects of this new class.
You could do this by declaring a List<Object>.
List<Object> randomBagOfJunk = new ArrayList<Object>();
randomBagOfJunk.add("Circle");
randomBagOfJunk.add(Color.WHITE);
randomBagOfJunk.add(Color.BLACK);
// no idea what a (n, n) is...
I strongly recommend that you don't do this, however. Find a different way to store the information. List<Object> is almost never the right solution, unless it's storing objects whose class is Object.class.
Create a new class to hold your data, and you can write a merge() method there as well.
class RandomBagOfUsefulThings
{
String name;
Color foreground;
Color background;
// etc.
RandomBagOfUsefulThings merge(RandomBagOfUsefulThings other)
{
// snip...
}
}
