Help please. How do I reverse every second word in a sentence?

Question

How do I reverse every second word in a sentence?
For example, I have a sentence" I am a noob programmer. "
It should be " I ma a boon programmer. " after I use the method.

Answer 1

public String ReverseEverySecondWord(String sentence) {
          String[] arr = sentence.split(" ");
          StringBuilder sb = new StringBuilder();
          StringBuilder tempSb;
          char[] cArr;
          sb.append(arr[0] + " ");
          for (int i = 1; i < arr.length; i++) {
               if (i % 2 == 1) {
                    tempSb = new StringBuilder();
                    cArr = arr.toCharArray();
                    for (int pos = cArr.length - 1; pos > -1; pos--) {
                         tempSb.append(cArr[pos]);
                    sb.append(tempSb.toString() + " ");
               } else
                    sb.append(arr[i] + " ");
          return sb.substring(0, sb.length() - 1);