Question

I have a very simple question, in fact I’m a bit frustrated that I can’t solve this on my own but here it is:

strBuffer += arg.charAt( i );

With this line I’m trying to parse a value and add it character by character to a new string. I’m doing this to seperate a single long string into an array of smaller string.

Example, this string

-time delayed -run auto -mode go_n_run

would become this array

strBuffer [0] = -time 
strBuffer [1] = delayed 
strBuffer [2] = -run 
strBuffer [3] = auto 
strBuffer [4] = -mode 
strBuffer [5] = go_n_run

So the line of code with the ‘+=’ doesn’t work, nothing gets put in my strBuffer. So I’ve tried something a little more “complex” that I found on a forum :

strBuffer.concat( new String( new char[]{arg.charAt( i )} ) );

But same result, nothing is put in strBuffer,

So, any hints would be appreciated

Thanks

EDIT : Here is the complete method

String[] args = new String[2 * ARG_LIMIT];
        int index = 0;

        for( int i = 0; i < arg.length(); i++ )
        {
            String strBuffer = new String();

            if( arg.charAt( i ) != ' ' )
            {   

                            // The two methods I've tried
                strBuffer.concat( new String( new char[]{arg.charAt( i )} ) );

                strBuffer += arg.charAt( i );

            }
            else if( arg.charAt( i ) == ' ' )
            {
                args[index] = strBuffer;
                index++;
                strBuffer = "";
            }
        }

Answer 1

I will assume that strBuffer is an instance of java’s StringBuffer; if so – you should use strBuffer.append().

But there’s a way simpler method for doing the thing you want:

String[] strBuff = arg.split(” “); //split by space