Ошибка строки Java с инструкцией if-then и ints

Question

Я пытаюсь поместить текущее время в выход L.E.D.-like и могу производить каждый раз вручную; но у меня возникают трудности с автоматическим отображением текущего времени.

В текущем выводе у меня есть время в четырех отдельных строках и выход времени в L.E.D. формат:

0 
-7 
5 
6 
    _ 
| | 
|_| 
     __ .  __ 
    | __|  |_| __| 
    | |__ .  | __| 

Мой код ниже объясняет это намного лучше. Извините за путаницу.

import java.util.Calendar; 
import java.util.Date; 
import java.text.DateFormat; 
import java.text.SimpleDateFormat; 

public class main { 


/** 
* @param args 
*/ 
public static void main(String[] args) { 
    // TODO Auto-generated method stub 

    //get current hour 
    DateFormat dateFormat = new SimpleDateFormat("HH"); 
    Date date = new Date();  
    String hour = dateFormat.format(date); 
    int hr = Integer.parseInt(hour); 

    //Separate hour into two int's 
    int f = hr-12; 
    int y = f/10; 
    int u = f % 10; 

    //get current minutes 
    DateFormat dfm = new SimpleDateFormat("mm"); 
    Date dm = new Date(); 
    String min = dfm.format(dm); 
    int mn = Integer.parseInt(min); 

    //Separate minutes into two int's 
    int a = mn; 
    int i = a/10; 
    int o = a % 10; 

    //print the time respectively 
    System.out.println(y); 
    System.out.println(u); 
    System.out.println(i); 
    System.out.println(o); 


    //characters to write the numbers 
    String text = " . "; 
    String t = "_"; 
    String l = "|"; 
    String sp = " "; 
    String br = "\n"; 

    //top middle and bottom characters 

    String t0 = sp+sp+t+sp+sp; 
    String m0 = sp+l+sp+l+sp; 
    String b0 = sp+l+t+l+sp; 

    //Ex: System.out.println(t0+br+m0+br+b0); would print the number 0 in led output 
    System.out.println(t0+br+m0+br+b0); 


    String t1 = sp+sp+sp+sp+sp; 
    String m1 = sp+sp+sp+l+sp; 
    String b1 = sp+sp+sp+l+sp; 

    String t2 = sp+t+t+sp+sp; 
    String m2 = sp+t+t+l+sp; 
    String b2 = l+t+t+sp+sp; 

    String t3 = sp+t+t+sp+sp; 
    String m3 = sp+t+t+l+sp; 
    String b3 = sp+t+t+l+sp; 

    String t4 = sp+sp+sp+sp+sp; 
    String m4 = sp+l+t+l+sp; 
    String b4 = sp+sp+sp+l+sp; 

    String t5 = sp+sp+t+t+sp; 
    String m5 = sp+l+t+sp+sp; 
    String b5 = sp+t+t+l+sp; 

    String t6 = sp+sp+t+sp+sp; 
    String m6 = sp+l+t+sp+sp; 
    String b6 = sp+l+t+l+sp; 

    String t7 = sp+t+t+sp+sp; 
    String m7 = sp+sp+sp+l+sp; 
    String b7 = sp+sp+sp+l+sp; 

    String t8 = sp+sp+t+sp+sp; 
    String m8 = sp+l+t+l+sp; 
    String b8 = sp+l+t+l+sp; 

    String t9 = sp+sp+t+sp+sp; 
    String m9 = sp+l+t+l+sp; 
    String b9 = sp+sp+sp+l+sp; 


    // My attempt to change the int's from the current date into variables for their output 

    if (y == 0) { 
     String a1 = t0; 
     String a2 = m0; 
     String a3 = b0; 

    } else if (y == 1) { 
     String a1 = t1; 
     String a2 = m1; 
     String a3 = b1; 

    } else if (y == 2) { 
     String a1 = t2; 
     String a2 = m2; 
     String a3 = b2; 

    } else if (y == 3) { 
     String a1 = t3; 
     String a2 = m3; 
     String a3 = b3; 

    } else if (y == 4) { 
     String a1 = t4; 
     String a2 = m4; 
     String a3 = b4; 

    } else if (y == 5) { 
     String a1 = t5; 
     String a2 = m5; 
     String a3 = b5; 

    } else if (y == 6) { 
     String a1 = t6; 
     String a2 = m6; 
     String a3 = b6; 

    } else if (y == 7) { 
     String a1 = t7; 
     String a2 = m7; 
     String a3 = b7; 

    } else if (y == 8) { 
     String a1 = t8; 
     String a2 = m8; 
     String a3 = b8; 

    } else if (y == 9) { 
     String a1 = t9; 
     String a2 = m9; 
     String a3 = b9; 

    } else { 
     String too = "F"; 
    } 

    if (u == 0) { 
     String x1 = t0; 
     String x2 = m0; 
     String x3 = b0; 

    } else if (u == 1) { 
     String x1 = t1; 
     String x2 = m1; 
     String x3 = b1; 

    } else if (u == 2) { 
     String x1 = t2; 
     String x2 = m2; 
     String x3 = b2; 

    } else if (u == 3) { 
     String x1 = t3; 
     String x2 = m3; 
     String x3 = b3; 

    } else if (u == 4) { 
     String x1 = t4; 
     String x2 = m4; 
     String x3 = b4; 

    } else if (u == 5) { 
     String x1 = t5; 
     String x2 = m5; 
     String x3 = b5; 

    } else if (u == 6) { 
     String x1 = t6; 
     String x2 = m6; 
     String x3 = b6; 

    } else if (u == 7) { 
     String x1 = t7; 
     String x2 = m7; 
     String x3 = b7; 

    } else if (u == 8) { 
     String x1 = t8; 
     String x2 = m8; 
     String x3 = b8; 

    } else if (u == 9) { 
     String x1 = t9; 
     String x2 = m9; 
     String x3 = b9; 

    } else { 
     String x1 = t9; 
     String x2 = m9; 
     String x3 = b9; 
    } 


    //The set up to print 12:43 in led format 
    //i would like to remove this so i can display the current time but i get errors 
    String a1 = t1; 
    String x1 = t2; 
    String c1 = text; 
    String d1 = t4; 
    String e1 = t3; 

    String a2 = m1; 
    String x2 = m2; 
    String c2 = "  "; 
    String d2 = m4; 
    String e2 = m3; 

    String a3 = b1; 
    String x3 = b2; 
    String c3 = text; 
    String d3 = b4; 
    String e3 = b3; 


    //using the setup to display the time 
    String time= a1+x1+c1+d1+e1+br+a2+x2+c2+d2+e2+br+a3+x3+c3+d3+e3; 

    //printing the time 
    System.out.println(time); 
} 

} 

Answer 1

Как насчет гораздо более читаемым версии, которая делает то же самое (цифра будет проще написать одно, что прочитать код:) ...

String s = " "; 
    String[][] d = new String[][] { 
     new String[] {" __ ", " ", " __ ", " __ ", " ", " __ ", " __ ", " __ ", " __ ", " __ ", " . "}, 
     new String[] {"| |", " | ", " __|", " __|", " |_|", "|__ ", "|__ ", "/", "|__|", "|__|", " "}, 
     new String[] {"|__|", " | ", "|__ ", " __|", " |", " __|", "|__|", "/", "|__|", " __|", " . "} 
    }; 
    int hour = 12; 
    int min = 7; 
    System.out.println(
     d[0][hour/10] + s + d[0][hour%10] + s + d[0][10] + s + d[0][min/10] + s + d[0][min%10] + "\n" + 
     d[1][hour/10] + s + d[1][hour%10] + s + d[1][10] + s + d[1][min/10] + s + d[1][min%10] + "\n" + 
     d[2][hour/10] + s + d[2][hour%10] + s + d[2][10] + s + d[2][min/10] + s + d[2][min%10] + "\n" 
     ); 

производит:

__ .  __ 
| __|  |_| |__| 
| |__ .  | __|