There seems to be an error in line 14.
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
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int number = Integer.parseInt(br.readLine());
if(number>0)
{
number = 2*number;
System.out.println(number);
}
else if(number<0)
{
number = number + 1;
System.out.println(number);
}
else
{
System.out.println("zero");
}
}
}