Appp

/**
 * Write a description of class App here.
 *
 * @author Samuel Berkat Hulu
 * @version 5.0 21-April-2021
 */

import java.io.*;
public class App
{
     public static void main(String[] args) throws IOException
    {
        String input, output;
        while(true)
        {
            System.out.print("Enter infix: ");
            System.out.flush();
            input = getString();
            if( input.equals("") )
                break;

            infixtopostfix theTrans = new infixtopostfix(input);
            output = theTrans.doTrans();
            System.out.println("Postfix is " + output + '\n');
        }
    }

    public static String getString() throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        String s = br.readLine();
        return s;
    }
}