Java coding challenges

Question

My code is below and I'm wondering how to print Take Care like ekaT eraC but it doesn't print that way.

public class challenge4 {

public static String everyOtherWordBackwards(String str)

{

String reversed = "";

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

{

String single = str.substring(i, + i + 1);

reversed = reversed + single;

}

System.out.println("The original is: " + str);

System.out.println("The new is: " + reversed);

return reversed;

public static void main(String[] args)

{

String str = "Take Care";

everyOtherWordBackwords(str);

}

}

Answer 1

If you want to reverse the alternate word you can try something like splitting the whole String into words delimited by whitespaces and apply StringBuilder reverse() on every second word like:-

String s = "My name is xyz";

String[] wordsArr = s.split(" "); // broke string into array delimited by " " whitespace

StringBuilder sb = new StringBuilder();

for(int i = 0 ; i< wordsArr.length; i++){ // loop over array length

if(i%2 == 0) // if 1st word, 3rd word, 5th word..and so on words

sb.append(wordsArr[i]); // add the word as it is

else sb.append(new StringBuilder(wordsArr[i]).reverse()); // else use StringBuilder revrese() to reverse it

sb.append(" ");// add a whitespace in between words

}

System.out.println(sb.toString().trim()); //remove extra whitespace from the end and convert StringBuilder to String

--------------------------------------

Output :- My eman is zyx