/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

1 vote111 views1 answer
Jaxb exclude field
Java
0 vote98 views1 answer
Java string to path
Java
-2 votes101 views2 answers
How to find a string in a sentence in java
Java
0 vote105 views1 answer
Java 8 find in list by property
Java
4 votes108 views5 answers
Java variables
Java
0 vote92 views1 answer
Algorithms - transformation
Java
0 vote101 views1 answer
How to iterate a queue in java
Java
0 vote134 views2 answers
Spring boot rest api
Java Spring
0 vote114 views1 answer
Hide element selenium
Java
0 vote113 views1 answer
A?che les paramètres de la ligne de commande triés par ordre lexicographique en java
Java