_1844.java

packagecom.fishercoder.solutions.secondthousand;

publicclass_1844 {
publicstaticclassSolution1 {
publicStringreplaceDigits(Strings) {
StringBuildersb = newStringBuilder();
for (charc : s.toCharArray()) {
if (Character.isAlphabetic(c)) {
sb.append(c);
 } else {
sb.append((char) (sb.charAt(sb.length() - 1) + Character.getNumericValue(c)));
 }
 }
returnsb.toString();
 }
 }

publicstaticclassSolution2 {
publicStringreplaceDigits(Strings) {
char[] inpArr = s.toCharArray();
for (inti = 1; i < inpArr.length; i += 2) {
inpArr[i] = (char) (inpArr[i - 1] + inpArr[i] - '0');
 }
returnString.valueOf(inpArr);
 }
 }
}