[darlineth]

Code:

using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;

namespace pemdas
{
    class Program
    {
        static void Main(string[] args)
        {
            string exp = "";
            Console.WriteLine("Sample Input: z / ( a + ( b - c ) * ( d - e ) ^ u ) ^ x");
            Console.Write("Enter expression: ");
            exp = Console.ReadLine();

            //exp = "z / ( a + ( b - c ) * ( d - e ) ^ u ) ^ x";

            Console.WriteLine(exp);

            exp = exp.Replace(" ", ",");

            Console.WriteLine("PostFix: " + Parse(exp));
            Console.ReadLine();
        }
        public static string Parse(string exp)
        {
            int start = exp.LastIndexOf("(");
            int end = 0;
            if (start >= 0)
            {
                end = exp.IndexOf(")", start);
                string subexp = exp.Substring(start, end - start + 1);
                exp = exp.Replace(subexp, Parse(subexp.Substring(2, subexp.Length - 4)));
                if(exp.IndexOf("(") >= 0)
                    exp = Parse(exp);
            }
            string[] items = exp.Split(',');
            ArrayList aNum = new ArrayList();
            ArrayList aOp = new ArrayList();
            string operators = "^*/+-";
            for (int x = 0; x < items.Length; x++)
            {
                if (operators.IndexOf(items[x]) >= 0)
                {
                    aOp.Add(items[x]);
                }
                else
                {
                    aNum.Add(items[x]);
                }
            }

            return ToPostFix(aNum,aOp);
        }

        public static string ToPostFix(ArrayList num, ArrayList op)
        {
            string[] ops = new string[] { "^", "*", "/", "+", "-" };
            for (int x = 0; x < ops.Length; x++)
            {
                int i = op.IndexOf(ops[x]);
                if (i >= 0)
                {
                    int j = i + 1;
                    num[i] = num[i].ToString() + " " + num[j].ToString() + " " + op[i].ToString();
                    num.RemoveAt(j);
                    op.RemoveAt(i);
                }
            }
            return num[0].ToString();
        }
    }
}

I'm Back again this Thread to ask a question.


Hey Guys, My Calculator was solve. But i have the problem of this,


Do you see the code on the top, that's a C#, my problem how can I convert of that code's in to Java.

My Calculator Expression is running for MDAS rules but My Instructor said o me. That my program is need to calculate the PEMDAS rule's. I'v research for the solution of my problem, But the problem is C#. I dont how to conver this into Java.

SOME BODY CAN HELP ME TO CONVERT THIS