Reverse a string in place?

Question

Python answer · Accepted Answer

def rev_in_place(string):
    for i in xrange(len(string)/2):
        aux = string[i]
        string[i] = string[len(string)-i-1]
        string[len(string)-i-1] = aux

aux = list('this is a test')
rev_in_place(aux)
print ''.join(aux)

aux = list('this is a tes')
rev_in_place(aux)
print ''.join(aux)

aux = list('')
rev_in_place(aux)
print ''.join(aux)

Matthew (Java) · Answer

import java.util.Scanner;
import java.io.*;

public class stringReversal{
	
    public static void main (String [] args){
    	
        Scanner input = new Scanner(System.in);
        String oldWord = input.nextLine();
        String newWord = "";
        
        for(int i = oldWord.length(); i>0; i--)
        {
        	newWord = newWord + oldWord.substring(i-1,i);
        }
        
        System.out.println(newWord);
    }
}

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