Foro de elhacker.net

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;


public class Main {


public static void main(String[] args) throws IOException {
FileReader entrada=null;
StringBuilder str=new StringBuilder();
char[] datos = new char[24]; 
int n=0;

try{
BufferedReader fileIn = new BufferedReader(
new FileReader ("u.txt"));
int read = fileIn.read();

while (read != -1){
datos[n]=(char) read;

n++; 
read = fileIn.read();

} 
} 
catch (FileNotFoundException ex)
{
}
catch (IOException ex)
{
}
}
}

while (read != -1){
    char actual=(char) read;
    if(actual!='\n' && actual!='\r')    {
        datos[n]=actual;
        n++;
    }
    read = fileIn.read();
}

 try {
            int a=0;
            br = new BufferedReader(new FileReader("DATOS.txt"));
            StringBuilder sb = new StringBuilder();
            String line = br.readLine();
            
            if (line != null) {
              line = br.readLine();
            }
            for (int i = 0; i < sb.length(); i++) {
                datos[a] = sb.charAt(a);
                a++;
            }
           
        } catch (IOException ex) {
            Logger.getLogger(Interfaz.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                br.close();
            } catch (IOException ex) {
                Logger.getLogger(Interfaz.class.getName()).log(Level.SEVERE, null, ex);
            }
        }