How do you reverse a string without using a predefined method?

Question

Accepted Answer

Logic to reverse a string without using string functions

Iterate through the string from the last character to the first
Create a new string and append each character to it in reverse order

Accepted Answer

string originalString = "test";
            string reverseString = string.Empty;
            foreach (char c in originalString)
            {
                reverseString = c + reverseString;
            }
            return reverseString;

Accepted Answer

import java.util.Scanner;

public class ReverseStringByScanner {

public static void main(String[] args) {

String str;

Scanner scanner=new Scanner(System.in);

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

str=scanner.nextLine(); //reading string from user

System.out.print("After reverse string is: ");

for(int i=str.length();i>0;--i) //i is the length of the string

{

System.out.print(str.charAt(i-1));

}

Accepted Answer

class ReverseString

{

public static void main(String[] args)

{

String str = "Hello team";

String reverseString = "";

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

{

reverseString += str.charAt(i);

}

System.out.println("Reverse String : " + reverseString);

}

Accepted Answer

Sir nokri dedo

Asked in UST and 10 others

How do you reverse a string without using a predefined method?

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