Question

Write a program that accepts numbers entered by the user until the user enters a
zero. The program then must display the largest value that is smaller than zero.
This should be java program

Answer 1

The question can be solved with this code :

(Note : If no value less than zero is given in input , 0 will be printed )

import java.util.*;
import java.lang.*;
import java.io.*;
public class zero {

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

       //initially set ans to 0
       double ans = 0.0;

       //variable to store input
       double value;

       //recieve first input
       value = scanner.nextDouble();

       //loop till input is not 0
       while(value != 0.0) {

           //if input value is negative
           if(value < 0) {

               //if ans is 0.0 means this is first negative value
               if(ans == 0.0)
                   //set ans as this value
                   ans = value;
               //else
               else {
                   // if this negative number is greater than previous largest negative number
                   if (value > ans)
                       //set this negative number as answer
                       ans = value;
               }
           }
           //recieve the next input
           value = scanner.nextDouble();
       }
       //print the answer
       System.out.println(ans);
   }
}

In case of any doubt please comment. Happy Learning :)