Write a program to reverse a given string.

Question

Accepted Answer

This program reverses a given string using various methods in programming languages.

Use a loop to iterate through the string backwards. Example: 'hello' becomes 'olleh'.
Utilize built-in functions like reverse() in Python. Example: 'hello' -> 'olleh'.
In Java, convert the string to a char array, reverse it, and convert back. Example: 'hello' -> 'olleh'.
In JavaScript, split the string, reverse the array, and join it back. Example: 'hello' -> 'olleh'.

Accepted Answer

def reverse_string(s):
    return s[::-1]
string = "Hello World"
print(reverse_string(string))

Accepted Answer

s="hello"
print(s[::-1])

Accepted Answer

import java.util.Scanner;

public class StringReversal {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.print("Enter a string: ");

String inputString = scanner.nextLine();

String reversedString = reverseString(inputString);

System.out.println("Reversed string: " + reversedString);

}

public static String reverseString(String inputString) {

String reversedString = "";

for (int i = inputString.length() - 1; i >= 0; i--) {

reversedString += inputString.charAt(i);

}

return reversedString;

}

Interview Questions from Popular Companies