NewOcr.java

package hello;

public class OCR {

    public static void main(String[] args)
    {
        String first = "1ba";
        String second = "a1a";
        boolean res = Ocr(first, second);
        System.out.println(res);
//        System.out.println(countingWordsLength(first));
    }

    // 6ba -> 8
    // 9ba - 12
    // 10cc <- must be 12 but will return 3, bug
    private static int countingWordsLength(String str){

        int length = 0;
        for (int i = 0; i < str.length() ; i++) {
            char c = str.charAt(i);
            if(Character.isDigit(c)){
                length += Character.getNumericValue(c);
            }else{
                length++;
            }

        }
        return length;

    }


    // 6ab -> ******ab
    // a3c -> a***c
    private static String expandStr(String ori){

        String result = "";
        for (int i = 0; i < ori.length() ; i++) {
            Character c = ori.charAt(i);
            if(Character.isDigit(c)){
                 for(int j = 0 ; j < Character.getNumericValue(c); j++){
                     result = result.concat("*");
                 }
            } else {
               result= result.concat(String.valueOf(ori.charAt(i)));
            }
        }
        return result;
    }

    public static boolean Ocr(String first, String second)
    {

        if (countingWordsLength(first) != countingWordsLength(second))
        {
            return false;
        }

        String expandStrA = expandStr(first);
        String expandStrB = expandStr(second);

        for (int i = 0; i < expandStrA.length() ; i++) {

            Character charA = expandStrA.charAt(i);
            Character charB = expandStrB.charAt(i);

            if(charA.equals('*') || charB.equals('*')){
                continue;
            } else {
                if(charA.equals(charB) == false){
                    return false;
                }
            }

        }
        return true;

    }
}