how to reverse text

Question

public class Yoda
{
public static void main(String[] args)
{
// sample text
String text = "I am your Father ";

String result = reverseWords(text);

System.out.println(result);
}

static String reverseWords(String s)
{
if (s == null || s.length() == 0)
{
return "";
}
// split words
String[] arr = s.split(" ");

StringBuilder sb = new StringBuilder();

for (int i = arr.length - 1; i >= 0; --i)
{
if (!arr[i].equals(""))
{
sb.append(arr[i]).append(" ");
}
}
return sb.length() == 0 ? "" : sb.substring(0, sb.length() - 1);
}
}
// i see how this says father your am i
//but how do i get it to say rethaf ruoy ma i ?

Answer 1

#include <iostream>
#include <string>
using namespace std;

string reverseStr(string x)
{
string temp = "";
int len = x.length();

for (int i = len - 1; i >= 0; --i)
{
temp += x[i];
}
return temp;
}

int main()
{
//sample text
string text = "YOURSTRING";

cout << reverseStr(text);

return 0;
}

Answer 2

why don't you use another string and then start putting each character from starting of 1st string (char array) to 2nd string' s opposite end
or
use swap using temP character variable

Answer 3

I understand you doing your own method for it but you'd rather use the built in StringBuilder/StringBuffer reverse method and then convert it back to String.

Answer 4

thank you for both your answers

Answer 5

u may use collection interface and Collections class it has reverse method