(URI) Substituição em Vetor I - Solução

import java.io.*;
import java.util.*;

class Main  {
    public static void main(String[] args) throws NumberFormatException, IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        for (int i = 0; i < 10; i++) {
            int valor = leitor(br);
           
            if (valor <= 0) {
                valor = 1;
            }
            bw.write("X["+i+"] = "+ valor +"\n");
        }

        bw.flush();       
        bw.close();
    }

    static int leitor(BufferedReader br) throws NumberFormatException, IOException {
       int n;
       int resp = 0;
       int sinal = 1;
       while (true) {
           n = br.read();
           if (n >= '0' && n <= '9') break;
           if (n == '-') sinal = -1;
           if (n == '+') sinal = 1;
       }
       while (true) {
           resp = resp*10 + n-'0';
           n = br.read();
           if (n < '0' || n > '9') break;
       }

       return resp*sinal;
    }
}