[trill]

Hi, I need to make a program that has the user enter an expression and solve the expression from left to right ignoring any order of operations.
For example the expression: 2+5*2 = 14. I have everything done except for the solving of the expression. I dont know how to break up the inputed string. I know i need to use the string tokenizer but im not sure how.
Can someone help point me in a direction.
Here is what i have now:

Code:

import java.util.*;
import java.io.*;

public class Calc
{

  //prompts the user for input and calls necessary methods
  public static void main(String args[])
  {
    String cont = "";

    do
    {
      System.out.println("Please enter a numeric expression.");
      Calc.getInput();

      System.out.print("Do you want to enter another expression? (y/n): ");
      cont = Calc.getInput();
    }while(cont.equalsIgnoreCase("y"));

     System.out.println("Goodbye");
  }

   //gets a single input from the user, and returns it as a String
  static String getInput()
  {
    java.io.InputStreamReader input = new java.io.InputStreamReader(System.in);
    java.io.BufferedReader console = new java.io.BufferedReader(input);

    try
    {
      return console.readLine();
    }
    catch(java.io.IOException e)
    {
      System.err.println("Bad NEWS!!!");
      return "";
    }
  }
}

Thanks.