public static String getString()throws IOException{              InputStreamReader isr =               new InoutStreamReader(System,in);               BufferedReader br = new BufferedReader(isr);               String s = br.readLine();                 return s;}public static char getChar() throws IOException{               String s= getString();               return s.charAt(0);}public static int getInt() throws IOException{              String s = getString();              return Integer.parseInt(s);}