Question

Please excuse me if this question is really obvious but i’ve tried everything.

I am trying to make a calculator that calculates the percentage of a number.

But it keeps outputting a 0 for the outputs when I use this code :

import java.io.*;

class pCalc {
     public static void main(String args[])
     {
          InputStreamReader istream = new InputStreamReader(System.in) ;
          BufferedReader bufRead = new BufferedReader(istream) ;

          System.out.println("Hello...");

          try {
               System.out.println("Please Enter In The Percentage You Want To Find (e.g 25): ");
               String rpercent = bufRead.readLine();

               System.out.println("Please Enter In The Number You Wish To Find The Percentage Of (e.g 200): ");
               String rnumber = bufRead.readLine();


               int repercent = Integer.parseInt(rpercent);
               int number = Integer.parseInt(rnumber);
               int percent = repercent / 100;

               int awnswer = number * percent ;

               System.out.println("Percent is: " + percent);
               System.out.println("Awnswer is: " + awnswer);
          }
          catch (IOException err) {
               System.out.println("Error reading line");
          }
          catch(NumberFormatException err) {
               System.out.println("Error Converting Number");
          }         
     }
}

Answer 1

int is natural number (or it’s negative… blah, int is Integer), it can’t be anything between 0 or 1. You must use float or double if you want to see something like 0,25