Question

In Java

Write a program that will ask the user for integers and print if the integer is positive, negative or zero. The program should continue asking for integer until the user enters a negative value.

Answer 1

Screenshot of program code:-

import java.util.Scanner; public class CheckInteger { public static void main(String[] args) { //Creating object of Scanner class for standard input Scanner stdin = new Scanner (System.in); //Declare variable to hold integer value int num; // Loop continue until the user enters a negative value do //Prompt & read the integer from user System.out.print("Enter integer number:"); num = stdin.nextInt(); //Checking the integer for positive, negative or zero if(num == 0) System.out.println("Integer is zero"); else if(num > 0) System.out.println("Integer is positive"); else System.out.println("Integer is negative"); } while (num >= 0);

Screenshot of output:-

Enter integer number: 10 Integer is positive Enter integer number: 0 Integer is zero Enter integer number: 7 Integer is positive Enter integer number:22 Integer is positive Enter integer number: 0 Integer is zero Enter integer number:-5 Integer is negative

Program code to copy:-

import java.util.Scanner;
public class CheckInteger {
   public static void main(String[] args) {
       //Creating object of Scanner class for standard input
       Scanner stdin = new Scanner(System.in);
       //Declare variable to hold integer value
   int num;

   //Loop continue until the user enters a negative value
   do
   {   
       //Prompt & read the integer from user
       System.out.print("Enter integer number:");
   num = stdin.nextInt();
  
   //Checking the integer for positive,negative or zero
   if(num == 0)
       System.out.println("Integer is zero");
   else
       if(num > 0)
           System.out.println("Integer is positive");
       else
           System.out.println("Integer is negative");
  
   } while(num >= 0);
   }
}