#include <stdio.h> 
#include <string.h>  
int main()  
{  
    char str[30]; 
    printf (" \n Enter a string to be reversed: ");  
    scanf ("%s", str);
    printf (" \n After the reverse of a string: %s ", strrev(str));  
    return 0;  
} 

#include <iostream>
using namespace std;
void revstr(string str)
{
    int i, len;
    char temp;
    len = str.length();
    for (i = 0; i < len / 2; i++) {
        temp = str.at(i);
        str.at(i) =str.at(len - i - 1);
        str[len - i - 1] = temp;
    }
    cout << "After reversing the string: " << str << endl;
}
int main()
{
     string str;
    cout<<"Enter the string";
    cin>>str;
    cout << "Before reversing the string: " << str << endl;
    revstr(str);
    return 0;
}

str=input("Enter the string: ")
print("The original string is: ", str)
reverse_String = ""
count = len(str)
while count > 0:
    reverse_String += str[count - 1]
    count = count - 1
print("The reversed string is : ", reverse_String)

import java.util.Scanner;

public class ReverseString {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter a String :");
        String inpStr = in.nextLine();
        System.out.println("Original String :" + inpStr);
        char temp;
        char[] arr = inpStr.toCharArray();
        int len = arr.length;
        for(int i=0; i<(inpStr.length())/2; i++,len--){
            temp = arr[i];
            arr[i] = arr[len-1];
            arr[len-1] = temp;
        }

        System.out.println("Reverse String :" + String.valueOf(arr));
    }