Question

• Write a test program that prompts the user to enter a sequence of numbers ending with 0, and invokes this method to return the largest number in the input.
• Use inheritance and polymorphism approach.
• in java please

Answer 1

This is the simplest way to write this program.

import java.util.Scanner;
import java.util.ArrayList;

public class first{

   public static void main(String[] args) {
       //to read input
       Scanner input = new Scanner(System.in);

       // Create an ArrayList
       ArrayList<Integer> list = new ArrayList<Integer>();

  
       System.out.print("Enter a sequence ending wih 0: ");
       Integer number = input.nextInt();
       while (number.intValue() != 0) {
           list.add(number);
           number = input.nextInt();
       }

       // Display the largest number in the input
       System.out.println("The largest number in the input is " + max(list));
   }

   //Return the maximum value in an ArrayList of integers
   public static Integer max(ArrayList<Integer> list) {
       if (list.size() == 0)
           return null;

       Integer max = list.get(0);
       for (int i = 0; i < list.size(); i++) {
           if (list.get(i) > max)
               max = list.get(i);
       }
       return max;
   }
}