Program to find the sum of positive even numbers, positive odd numbers and negative numbers from a list of numbers entered.

/*Program to find the sum of positive even numbers,positive odd numbers and negative numbers from
  a list of numbers entered*/
 
  import java.io.*;
  public class sum_num
  {
      public static void main(String args[])throws IOException
      {
          InputStreamReader read=new InputStreamReader(System.in);
          BufferedReader in=new BufferedReader(read);
          int num,sum_e,sum_o,sum_n;
          sum_e=0;sum_o=0;sum_n=0;
          System.out.println("Enter 0 to terminate the list:");
        do
        {
            System.out.println("Enter a number:");
            num=Integer.parseInt(in.readLine());
            if(num>0)
            {
                if(num%2==0)
                sum_e=sum_e+num;
                else
                sum_o=sum_o+num;
            }
            if(num<0)
            sum_n=sum_n+num;
        }
        while(num!=0);
        System.out.println("Sum of positive even numbers:"+sum_e);
        System.out.println("Sum of positive odd numbers:"+sum_o);
        System.out.println("Sum of negative numbers:"+sum_n);
    }
}