Question

Hello, I need to convert this java array into an array list as I am having trouble please.

import java.util.Random;
import java.util.Scanner;

public class TestCode {
    public static void main(String[] args) {
        String choice = "Yes";
        Random random = new Random();
        Scanner scanner = new Scanner(System.in);
        int[] data = new int[1000];
        int count = 0;
        while (!choice.equals("No")) {
            int randomInt = 2 * (random.nextInt(5) + 1);
            System.out.println(randomInt);
            data[count++] = randomInt;
            System.out.print("Want another random number (Yes / No)? ");
            choice = scanner.next();
        }
        int min = data[0], max = data[0];
        for (int i = 0; i < count; i++) {
            if (data[i] > max) max = data[i];
            if (data[i] < min) min = data[i];
        }
        System.out.println("Percentage of Yes values is " + (((count-1)*100.0)/count));
        System.out.println("Maximum value is " + max);
        System.out.println("Minimum value is " + min);
    }
}

Answer 1

SOURCE CODE:

*Please follow the comments to better understand the code.

**Please look at the Screenshot below and use this code to copy-paste.

***The code in the below screenshot is neatly indented for better understanding.

import java.util.*;

public class TestCode {
public static void main(String[] args) {
String choice = "Yes";
Random random = new Random();
Scanner scanner = new Scanner(System.in);
  
//declare an arraylist here
ArrayList<Integer> data = new ArrayList<Integer>();
int count = 0;
while (!choice.equals("No")) {
int randomInt = 2 * (random.nextInt(5) + 1);
System.out.println(randomInt);
//change here add() method
data.add(randomInt);
count++;
System.out.print("Want another random number (Yes / No)? ");
choice = scanner.next();
}
//NOT NEEDED
// int min = data[0], max = data[0];
// for (int i = 0; i < count; i++) {
// if (data[i] > max) max = data[i];
// if (data[i] < min) min = data[i];
// }
  
//USE THIS
int min=Collections.min(data);
int max=Collections.max(data);
  
System.out.println("Percentage of Yes values is " + (((count-1)*100.0)/count));
System.out.println("Maximum value is " + max);
System.out.println("Minimum value is " + min);
}
}

==========================

SCREENSHOT:

OUTPUT: