/Java/Reverse string using recursion java with explanation

Reverse string using recursion java with explanation

public static String reverse(String str) {
    if ((null == str) || (str.length() <= 1)) {
        return str;
    }
    return reverse(str.substring(1)) + str.charAt(0);
}

Source: stackoverflow.com

Reverse string using recursion java with explanation

public class Test {

    private static int i = 0;

    public static void main(String args[]) {
        reverse("Hello");
    }

    public static String reverse(String str) {
        int localI = i++;
        if ((null == str) || (str.length()  <= 1)) {
            return str;
        }
        System.out.println("Step " + localI + ": " + str.substring(1) + " / " + str.charAt(0));
        String reversed = reverse(str.substring(1)) + str.charAt(0);

        System.out.println("Step " + localI + " returns: " + reversed);
        return reversed;
    }
}

Source: stackoverflow.com

Reverse string using recursion java with explanation

public static String reverse(String str) 
{
    if(str.length() == 0)
       return "";
    return str.charAt(str.length()-1) + reverse(str.substring(0,str.length()-1)); 
}

Source: scaler.com

Similar codes

3 votes154 views1 answer
How to format a datetime object to show date and time and milliseconds in java
Java
3 votes160 views1 answer
How to convert primitive int to Integer in java
Java
0 vote109 views1 answer
How to get the width and height of display device in java
Java
0 vote149 views1 answer
Double to string java stack overflow
Java
8 votes215 views1 answer
Error could not create the java virtual machine ubuntu 20.04
Java
4 votes151 views2 answers
Import class java
Java
4 votes153 views2 answers
Spigot repeating task
Java
1 vote142 views1 answer
How to find the class of an object java
Java
0 vote160 views1 answer
Input using stringbuffer
Java
0 vote138 views1 answer
Android java xml combo box
Java