How to automatically assign large amount of objects into a list

Asked Jun 03 '22 at 16:20

Active Jun 03 '22 at 16:21

Viewed 22 times

-3

So let's say I have a class named Car, and I have multiple Car objects, (c1, c2, c3...c1000) How do I assign them in a list automatically. I have an idea like

public List<Car> getCarList() {
    List<Car> list = null;

    String temp = "c";

    for (int i = 1; //starts at car1
            i < 1001; //ends at car1000
            i++) {
        temp += i;
        list.add(temp); //here's the part where I don't know what the exact input should be
        temp = "c";
    }

    return list;
}

If there's some flaws in this idea or it's straight up wrong please suggest another way to do this.

edited Jun 03 '22 at 16:21

asked Jun 03 '22 at 16:20

Shaia Schlie

You need to create Car objects with some constructor to pass in values, then add that object to the list. – OldProgrammer Jun 03 '22 at 16:21
1

_I have multiple Car objects_ Where? – Sotirios Delimanolis Jun 03 '22 at 16:21
2

There are no `Car` objects anywhere. All there is, is Strings with the values `"c1"` to `"c1000"`. Also your code will throw a `NullPointerException` because `list` is initialized with `null` instead of creating a new instance. – QBrute Jun 03 '22 at 16:23
Maybe you're looking at something like https://stackoverflow.com/questions/6729605/assigning-variables-with-dynamic-names-in-java – Sotirios Delimanolis Jun 03 '22 at 16:25

How to automatically assign large amount of objects into a list

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