// CIS 790           PROF. AUCIELLO

// DOWNLOAD THIS TO JDK1.2.2\BIN  AND COMPILE WITH JAVAC,
// AND RUN WITH  JAVA 

class adddemo
  { public static void main(String args[])
      {
        int i        = 0;
        int sum      = 0;
        byte buff1[] = new byte[64];
        
        try
          {
            System.out.print("Enter End Value: ");
            System.in.read(buff1, 0, 64);
            String str1 = new String(buff1,0);     
            String str2 = str1.trim();  
            int e       = Integer.parseInt(str2);    

            for ( i=0;  i<=e;  i++)
              {
                sum = i + sum;
                System.out.println("i = " + i + "  rolling sum = " + sum);
              }  // ends the for loop.

            System.out.println("The sum of 1 to " + e + " is " + sum);
           } // ends try clause

       catch (Exception e) 
           { String err = e.toString();   
             System.out.println(err);      
           } // end catch. 


      } // ends inner loop
  } // class