How can I do this?

[Manuel Diaz]

I want to input this:

m2

I have to variables. One is String "word" and the other one is int "col".

Im spliting the input text. I want to assign the second letter to col. Here is my code:

for (int count = 0 ; count < word.length () ; count++)
            {
                c.println (word.charAt (count));
            }
            word = c.readLine ();
            c.println ("Program Terminated");
        }
        col = word.charAt(1);
        c.println(col);
         

The program outputs "50" . How can this happen?. What's wrong in here?. How can "col" be 50 if when I split the text I have this:

a
2

IN THIS CASE THE INPUT WAS "a2".
[ May 14, 2005: Message edited by: Manuel Diaz ]

[M Beck]

i suspect your code is actually correct. what may be confusing you is the fact that "col" is an integer variable instead of a char variable. have you studied the difference, and do you know what it means to assign a char to an int?

for a "quick fix", you might get away with just modifying the println statement where "col" is printed out; cast "col" back to a char before printing it, and see what happens.

[Manuel Diaz]

Is there any way where I can transform the char "c" int integer?. I need teh integer value.

[Vijay Jagannathan]

charecters can be implicitly converted to an int.

Example:

 
           char charecter = 'c';
           int i = charecter; // The value of "i" is 99 

Is this what you wanted?

Cheers
Vijay

[Joel McNary]

Yes, '2' == 50.

As has been pointed out, you can say:

int i = '2';

and i will == 50. However, I suspect that you want '2' to result in 2. There are two ways of doing this. The first is to use the Integer.parseInt() method; but that takes a String. The second way is to say:

char aChar = '2';
int value = aChar - '0';

Now, value will equal 2. However, if you put aChar = '?', value will equal 15. So you probably want to ensure that your char is a digit (aChar >='0' && aChar <='9').

[Manuel Diaz]

OK, I think I have to be more specific. Here is my code:

 
char col = 0, row = 15;
 
 c.println ("Please enter a number:");
        word = c.readLine ();
 
        while (word.equals ("a") || word.equals ("b") || word.equals ("c") || word.equals ("d") || word.equals ("e")
                || word.equals ("f") || word.equals ("g") || word.equals ("h"))
        {
            for (int count = 0 ; count < word.length () ; count++)
            {
                c.println (word.charAt (count));
            }
            word = c.readLine ();
            c.println ("Program Terminated");
        }
        if (word.length () > 2)
            c.println ("Error");
        col = (word.charAt (1)); 

In this code, Im telling the following, I have two variables "col" and "row". I ask the user to enter sometext of this format (a letterfirst, a number after). Now Im separating the text, Im saying in my code, that the "number" (the second part of the text after splitted) takes the value of that "number". Example:

the user inputs: g2

the program outputs: g
2

The program assigns "2" to "col". But col is a char type. When I printed "col" the program outputs "50", it has to be "2" that's the real value. I need the integer value because I want to use it on an array.

array[row][col] = something!.

OK, now I think I expressed a little more, if anyone can help me out, please!! feel free!

[Henry Wong]

The program assigns "2" to "col". But col is a char type. When I printed "col" the program outputs "50", it has to be "2" that's the real value. I need the integer value because I want to use it on an array.

array[row][col] = something!.

OK, now I think I expressed a little more, if anyone can help me out, please!! feel free!

I would suggest re-reading some of the responses, particulary the one by Joel McNary. He did answer your question.

Henry