This is my code but it not work, help me in JAVA please

Given a base Plant class and a derived Flower class, complete main() to create an ArrayList called myGarden. The ArrayList should be able to store objects that belong to the Plant class or the Flower class. Create a method called printArrayList(), that uses the printInfo() methods defined in the respective classes and prints each element in myGarden. The program should read plants or flowers from input (ending with -1), add each Plant or Flower to the myGarden ArrayList, and output each element in myGarden using the printInfo() method. Ex. If the input is: plant spirea 10 flower Hydrangea 30 false lilac flower Rose 6 false white plant Mint 4 1 the output is: Plant 1 Information: Plant name: Spirea Cost: 10 Plant 2 Information: Plant name: Hydrangea Cost: 30 Annual: false Color of flowers: lilac Plant 3 Information: Plant name: Rose Cost: 6 plant spirea 10 flower Hydrangea 30 false lilac flower Rose 6 false white plant Mint 4 1 the output is: Plant 1 Information: Plant name: Spirea Cost: 10 Plant 2 Information: Plant name: Hydrangea Cost: 30 Annual: false Color of flowers: lilac Plant 3 Information: Plant name: Rose Cost: 6 Annual: false Color of flowers: white Plant 4 Information: Plant name: Mint Cost: 4 public class PlantArrayListExample \{ public static void printArrayList(ArrayList> myGarden) \{ for (int i=0;i myGarden = new ArrayList (); String plantName; String plantCost; String colorOfFlowers; boolean isAnnual; System.out.println("Enter plant/flower information (or -1 to exit):"); input = scnr. next () while (! input.equals("-1")) \{ String[] info = input.split(" "); if (info[0].tolowerCase().equals("plant")) \{ Plant p1 = new Plant ( ) p1. setPlantName(info[1]); p1. setPlantCost(info[2])