code to reverse a string

public class ReverseString {
    public static void main(String[] args) {
        String s1 = "neelendra";
        for(int i=s1.length()-1;i>=0;i--)
            {
                System.out.print(s1.charAt(i));
            }
    }
}

#include <stdio.h>
#include <string.h>
int main()
{
   char s[100];

   printf("Enter a string to reverse\n");
   gets(s);

   strrev(s);

   printf("Reverse of the string: %s\n", s);

   return 0;
}

1. Create a temporary byte[]  of length equal 
   to the length of the input string.
2. Store the bytes (which we get by using 
   getBytes() method) in reverse order into 
   the temporary byte[] .
3. Create a new String abject using byte[] to
   store result.

//make a scanner object
Scanner input = new Scanner(System.in);

//take in an input string and store it inside a <String> variable
System.out.println("Enter the string: ");
String string = input.nextLine();

//convert string to character arraylist by first creating
//an array list for the characters in correct order
//and an array list for what we will use
//to store the characters in reverse order later in the code
ArrayList<Character> chars = new ArrayList<Character>();
ArrayList<Character> reversed = new ArrayList<Character>();

//put all the characters from string into chars arrayList
for (char c : string.toCharArray()) {
    chars.add(c);
}

//get the size of the arraylist
Integer length = chars.size() - 1;
Integer x = 0;

//loop all the elements in the array chars into reversed arraylist in reverse order
while(x < chars.size()) {
    reversed.add(chars.get(length));
    length -= 1;
    x += 1;
}