why not its ok

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package com.codegym.task.task04.task0412; /* Positive and negative numbers */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here InputStream input = System.in; InputStreamReader reader= new InputStreamReader(input); BufferedReader br=new BufferedReader(reader); // System.out.println("please enter a num"); String num = br.readLine(); int number= Integer.parseInt(num); if(number>0) { number=number*2; System.out.println(number);} if (number<0){ // number=number*(-1); number= (number/-1) + 1; System.out.println(number);} if (number==0) System.out.println(number); } }

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MaGaby2280

Level 41 , Guatemala City, Guatemala

16 September 2019, 17:44

This is what I did: import java.util.Scanner; public class Solution { public static void main(String[] args) throws Exception { Scanner scanner = new Scanner(System.in); int x = scanner.nextInt(); if (x > 0) { x = x * 2; System.out.println(x); } else if (x < 0){ x = x + 1; System.out.println(x); } else if (x == 0){ x = 0; System.out.println(x); } } }

divya

Level 5 , hyderabad, India

23 November 2018, 07:47

if (num<0) num= num + 1; if the number is less than "0" it should be increased by one.no need of convertion

Khurram

Level 16 , Lahore, Pakistan

20 November 2018, 05:33

you should add 1 to a negative number, example (-5+1 = -4), here you are converting it to a positive number and then adding 1

I.A

Level 7 , unknown city, Oman

26 November 2018, 14:10

ans is not 6 its -4 so how could say ans is increasing by 1

Michael Martin

Level 19 , Arlington, United States

26 November 2018, 14:39

Because adding 1 to -5 = -4. (-5 + 1) = -4

I.A

Level 7 , unknown city, Oman

26 November 2018, 14:43

ok igot but same error with separate if statements technique?what is reason behind it

Michael Martin

Level 19 , Arlington, United States

26 November 2018, 15:28

can you post your new code?

I.A

Level 7 , unknown city, Oman

26 November 2018, 16:09

package com.codegym.task.task04.task0412; /* Positive and negative numbers */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here InputStream input = System.in; InputStreamReader reader= new InputStreamReader(input); BufferedReader br=new BufferedReader(reader); // System.out.println("please enter a num"); String num = br.readLine(); int number= Integer.parseInt(num); if(number>0) { number=number*2; System.out.println(number);} else if (number<0){ // number=number*(-1); number= number + 1; System.out.println(number); } //(number==0) else System.out.println("0"); } }

Michael Martin

Level 19 , Arlington, United States

26 November 2018, 16:20

Not sure why it's not working. Try:

if (number == 0)
   System.out.println(number);
if (number < 0)
   System.out.println(number + 1);
if (number > 0)
   System.out.println(number * 2);