// CS 1621 Fall 2005
// Improved reliability by avoiding the operator confusion error
// of C++.  In Java, if assignment is mistaken for comparison, a
// compilation error will occur, since the expression result must
// be boolean.

import java.io.*;
public class assign
{
   public static void main(String [] args) throws IOException
   {
       BufferedReader BR = new BufferedReader( 
                           new InputStreamReader(System.in));
                                 
       int num;
       System.out.println("Please enter a one or a two:");
       num = Integer.parseInt(BR.readLine());
       
       if (num = 1)  // will give a compilation error
          System.out.println("You entered one");
       else
          System.out.println("You entered two");
   }
}