UVA - 12364 - In Braille

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        char[][][]arr=new char[10][3][2];
        for(int i=0;i<10;i++){
           if(i!=9 &&i!=0){
               arr[i][0][0]='*';
           }else{
               arr[i][0][0]='.';
           }
           if(i!=1 &&i!=2&&i!=5 &&i!=8){
               arr[i][0][1]='*';
           }else{
               arr[i][0][1]='.';
           }
           if(i!=1 &&i!=3&&i!=4 &&i!=5){
               arr[i][1][0]='*';
           }else{
               arr[i][1][0]='.';
           }
           if(i!=1 &&i!=2 &&i!=3&&i!=6 &&i!=9){
               arr[i][1][1]='*';
           }else{
               arr[i][1][1]='.';
           }
           arr[i][2][0]='.';
           arr[i][2][1]='.';
        }
       
        StringBuffer sb = new StringBuffer("");
        String m = "";
        while (true) {
            int n =Integer.parseInt(br.readLine());
            if (n==0) {
                break;
            }
            char tempC=br.readLine().charAt(0);
            if(tempC=='S'){
                sb.append(encode(br.readLine(),arr));
            }else{
                char[][][]mes=new char[n][3][2];
                for (int j = 0; j < 3; j++) {
                    String temp=br.readLine();
                    for(int i=0,num=0;i<temp.length();num++){
                        if(i>0)
                            i++;
                        for (int z = 0; z < 2; z++,i++) {
                            mes[num][j][z]=temp.charAt(i);
                        }
                   }
                }
                sb.append(decode(mes, arr));
            }
        }
        System.out.print(sb);
    }
   
    static String encode(String x,char[][][]arr){
        int[]arrN=new int[x.length()];
        for(int i=0;i<x.length();i++){
            arrN[i]=x.charAt(i)-48;
        }
        StringBuilder sb=new StringBuilder();
        for(int j=0;j<3;j++){
            for(int i=0;i<arrN.length;i++){
                if(i>0)
                    sb.append(" ");
                for(int z=0;z<2;z++){
                   sb.append(arr[arrN[i]][j][z]);
                }
            }
            sb.append("\n");
        }
        return sb.toString();
    }
   
    static String decode(char[][][] x, char[][][] arr) {
        StringBuilder sb = new StringBuilder();
        for (int ind = 0; ind < x.length; ind++) {
            int num = -1;
            for (int i = 0; i < 10; i++) {
                int counter = 0;
                for (int j = 0; j < 3; j++) {
                    for (int z = 0; z < 2; z++) {
                        if (arr[i][j][z] == x[ind][j][z]) {
                            counter++;
                            if (counter == 6) {
                                num = i;
                                break;
                            }
                        }
                    }
                    if (counter == 6) {
                        break;
                    }
                }
                if (counter == 6) {
                    break;
                }

            }
            sb.append(num);
        }
        sb.append("\n");
        return sb.toString();
    }
}