error checking for int

hi im wondering how u error check to make sure that the getInt method only
retrieves integrs and nothign else..eg no alphabets
here r the methods

//-------------------------------------------------------------
public static String getString() throws IOException
{
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(isr);
String s = br.readLine();
return s;
}

//-------------------------------------------------------------
public static int getInt() throws IOException
{
String s = getString();
return Integer.parseInt(s);
}

//--------------------------------------------------------------

String s = getString();
try {
return Integer.parseInt(s);
} catch(NumberFormatException nfe) {
// the input was not an integer
return 0;
}

"Whigot" <whigot90@hotmail.com> wrote in message
news:3bd29825$1@news.devx.com...
>
> hi im wondering how u error check to make sure that the getInt method only
> retrieves integrs and nothign else..eg no alphabets
> here r the methods
>
> //-------------------------------------------------------------
> public static String getString() throws IOException
> {
> InputStreamReader isr = new InputStreamReader(System.in);
> BufferedReader br = new BufferedReader(isr);
> String s = br.readLine();
> return s;
> }
>
> //-------------------------------------------------------------
> public static int getInt() throws IOException
> {
> String s = getString();
> return Integer.parseInt(s);
> }
>
> //--------------------------------------------------------------