Question

java

Given that class Zebra has a constructor with a header as follows: public Zebra(int age, int stripes) complete the following method. A try-with-resources is required. Method zebraCatalog reads all of the data from the file passed to parameter zebralist, creates a Zebra object for each line of data in the file, adding all of the zebra objects to the ArrayList passed to parameter zebras. Each line of data in the file consists of a zebra's age, a space and its number of stripes. For example: 23 41 public static void zebraCatalog(ArrayList<Zebra > zebras, File zebralist) { A B / AV EE BOATS X xil 3 1 va 2 FI >

Answer 1

import java.io.*;
import java.util.ArrayList;
import java.util.Scanner;

public class Zebra {
    int age;
    int stripes;

    public Zebra(int age, int stripes) {
        this.age = age;
        this.stripes = stripes;
    }

    public static void zebraCatalog(ArrayList<Zebra> zebras, File zebraList) {
        Scanner sc;
        try {
            sc = new Scanner(zebraList);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return;
        }
        while (true){
            try {
                int age = sc.nextInt();
                int stripes = sc.nextInt();
                Zebra z = new Zebra(age, stripes);
                zebras.add(z);
            }catch (Exception e){
                break;
            }
        }
    }

    public static void main(String[] args) {
        File zebraList = new File("test.txt");
        ArrayList<Zebra> ar = new ArrayList<>();
        zebraCatalog(ar, zebraList);

        for (Zebra z: ar)
            System.out.println(z.age+" "+z.stripes);
    }
}