/** Grundlagen der Informatik
*
Beispiel Dateizugriff
*
Schreiben und Lesen einer Datei
*/
public class File1 {
public static void main(String args[]) throws IOException {
String text = new String("Hello World!");
String dateiName = new String("file1");
schreibeString(dateiName, text);
String lesen = leseString(dateiName);
System.out.println("\n"+lesen+"\n");
} // main
/** Methode schreibt String data in Datei name */
private static void schreibeString(String name, String data) throws IOException
{
FileOutputStream fout = new FileOutputStream(name);
BufferedOutputStream bout = new BufferedOutputStream(fout);
DataOutputStream out = new DataOutputStream(bout);
for (int i = 0; i <= data.length()-1; i++)
out.writeChar(data.charAt(i));
out.close();
bout.close();
fout.close();
} // schreibeString
/** Methode liest String aus Datei name und gibt ihn zurueck */
private static String leseString(String name) throws IOException {
FileInputStream fin = new FileInputStream(name);
BufferedInputStream bin = new BufferedInputStream(fin);
DataInputStream in = new DataInputStream(bin);
char gelesen;
String res = new String("");
while (in.available() > 0)
res += in.readChar();
in.close();
bin.close();
fin.close();
return res;
} // leseString
} // File1