On May 4, 7:46 pm, el mio uno y dos <[email protected]> wrote:
> Hello companion, I have the following problem in exercise I/O Stream, have
> created the two classes, in the class read, with himself that the document
> reads it changes and it to capital letters, but now not like following.
> Somebody can help me please?
>
> public class ChangeToUpperCaseInputStream extends FilterInputStream{
> String b="";
> public ChangeToUpperCaseInputStream (InputStream in){
> super (in);
> }
>
This is ok.
> public StringBuilder StreamToUpper() {
>
> BufferedReader buff = new BufferedReader(new
> InputStreamReader(super.in));
> StringBuilder str = new StringBuilder();
> String line = null;
>
> try {
> while((line=buff.readLine())!=null) {
> str.append(line.toUpperCase() + "\n"); Here read a file
> and change to uppercase, but how can i following???
>
> }
> return str;
> } catch (IOException e) {}
> return null;
> }
This is absolutely not OK, since as you discovered yourself, you need
an int, or a char (which can be converted from/to an int)
>
> public int read() throws IOException {
>
> int c = StreamToUpper().read(); Here have a problem, because
> requiere int
> return c;
>
> }
> }
Here you should read in, then pass the result to a method which
convert an int to another int, in which you take the int, convert it
to a char, take the char to build a string, convert this string to
uppercase, reconvert the new string to a char, and return the int
equivalent to the char. And return the result to the read method. Then
it would work.
>
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