Switch statement in constructor

I'm new to java and trying to make a console based rpg but I have a problem. I want to make a potion class that can have different effects, so my idea was to use a swtich statement in the constructor but this doesnt work because I have a parent class "Item" that needs values like name or description, so the super function is needed

package Items;

public class Potion extends Item {
    private int effect;
    private int amount;


    public Potion(int effect, int amount) {

        switch(effect) {
            case 0 -> super("Potion of regeneration", "", "Potion");
            case 1 -> super("Potion of attack power", "", "Potion");
        }

        this.effect = effect;
        this.amount = amount;
    }
}

In the constructor super isn't a top level statement which it has to be. Is there any way I can work around this?

Answer

In current JDK the call to super must be first line, so you can adjust with these approaches:

public Potion(int effect, int amount) {
    super(effect==0 ? "Potion of regeneration": "Potion of attack power", "", "Potion");
    this.effect = effect;
    this.amount = amount;
}

If your case might be extended, use a helper function:

private static String potion(int effect) {
    return switch(effect) {
        case 0 -> "Potion of regeneration";
        case 1 -> "Potion of attack power";
        // Other values here ...
        default -> throw new IllegalArgumentException("Unexpected value: "+effect);
    };
}
public Potion(int effect, int amount) {
    super(potion(effect), "", "Potion");

    this.effect = effect;
    this.amount = amount;
}

JDK25 should provide flexible constructor bodies as part of Read more which allow inline prologue before super:

public Potion(int effect, int amount) {
    String pe = switch(effect) {
        case 0 -> "Potion of regeneration";
        case 1 -> "Potion of attack power";
        // Other values here ...
        default -> throw new IllegalArgumentException("Unexpected value: "+effect);
    };
    super(pe, "", "Potion");
}