java-1006 Change the format to output integers (15)

1006 Change format to output integer (15) (15 points)

Let's use the letter B for "hundred", the letter S for "ten", and "12...n" for the ones digit n (<10), and change the format to output any positive integer up to 3 digits. For example, 234 should be output as BBSSS1234 because it has 2 "hundreds", 3 "tens", and a 4 for the ones.

Input format: Each test input contains 1 test case, giving a positive integer n (<1000).

Output format: The output of each test case occupies one line, and outputs n in the specified format.

Input sample 1:

234

Sample output 1:

BBSSS1234

Input sample 2:

23

Sample output 2:

SS123

 consists of several steps

    1. Data acquisition

    2. Data processing

    3. Big Process

1. Data acquisition:

public static String getData() throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        return bufferedReader.readLine();
    }

 2. Data processing

public static void getX(char c, StringBuffer stringBuffer, String X) {
        int size = c - 48;
        for ( ; size > 0 ; size --) {
            stringBuffer.append(X);
        }
    }

    public static void get123(char c, StringBuffer stringBuffer) {
        int size = c - 48;
        for (int i = 1 ; i <= size ; i ++) {
            stringBuffer.append(i);
        }
    }

There are two cases, the former deals with hundreds and tens, and the latter deals with ones.

3. Overall process

public static void main() throws Exception {
        String target = getData();
        StringBuffer result = new StringBuffer();
        switch (target.length()) {
            case 1:
                get123(target.charAt(0), result);
                System.out.print(result.toString());
                break;
            case 2:
                getX(target.charAt(0), result, "S");
                get123(target.charAt(1), result);
                System.out.print(result.toString());
                break;
            case 3:
                getX(target.charAt(0), result, "B");
                getX(target.charAt(1), result, "S");
                get123(target.charAt(2), result);
                System.out.print(result.toString());
                break;
        }
    }

transfer:

public static void main(String[] args) throws Exception {
        main();
    }