Question

Write a ( JAVÅ) program which reads (from the keyboard) numbers (doubles) until a zero is input and computes the maximum and minimum of all the read numbers (excluding the terminating zero). Note: you must allow for negative as well as positive numbers. Hint: look at java.lang.Double.MAX_VALUE and java.lang.Double.MIN_VALUE.

Answer 1

import java.util.Scanner;

public class MaxMin {
   public static void main(String[] args){
       Scanner s=new Scanner(System.in);    //create scanner object to read input
       double max=0,min=0,num;
       System.out.println("Enter numbers, terminate with 0");
       do{
           num=s.nextDouble();    //read a double number from keyboard
           if(num>max){
               max=num;   //assign number to max if number is greater than max
           }
           if(num<min){
               min=num;    //assign number to min if number is lesser than min
           }
       }while(num!=0);
       System.out.println("Maximum: "+max);    //display the maximum number
       System.out.println("Minimum: "+min);    //display the minimum number
   }
}