First Reverse Coderbyte Solution

Challenge name: First Reverse
Difficulty: Easy
Maximum Score: 10
Solved language: Java, Python, JavaScript, C++

Description: For this Challe challenge, you will be reversing a string.     

Problem

Have the function FirstReverse(str) take the str parameter being passed and return the string in reversed order. 

For example: if the input string is "Hello World and Coders" then your program should return the string sredoC dna dlroW olleH.

Examples 1: 

Input: "coderbyte"

Output: etybredoc

Examples 2: 

Input: "I Love Code"

Output: edoC evoL I

Solution - First Reverse Java Coderbyte Solution

import java.util.*;

import java.io.*;

class Main {

public static String FirstReverse(String str) {

// code goes here

StringBuffer obj = new StringBuffer(str);

obj.reverse();

str = obj.toString();

return str;

}

public static void main(String[] args) {

// keep this function call here

Scanner s = new Scanner(System.in);

System.out.print(FirstReverse(s.nextLine()));

}

}

Explanation:

In this Solution i used StringBuffer to find the reverse of given String.

1) Create StringBuffer object and pass the String value                  

2) Use reverse() of StringBuffer                                                  

3) Convert StringBuffer back to a string using toString().

Solution- First Reverse Coderbyte JavaScript

function FirstReverse(str) {

return str.split("").reverse().join("");

}

Explanation:

There is no reverse function for Strings in JavaScript BUT there is a reverse() function for arrays.  I will use this built-in function for my solution.

1) Convert the string to an array using the split() function.                     

2) Use Array Reverse() function.                                                  

3) Convert array back to a string using join() function. 

Solution- First Reverse Coderbyte Python

def FirstReverse(a_string):

reversed_string = ''

for char in a_string[::-1]:

reversed_string += char

return reversed_string

# keep this function call here

# to see how to enter arguments in Python scroll down

print FirstReverse(raw_input())

Disclaimer: The above Problem is generated by Coderbyte but the Solution is provided by ShouterFolk.