Sep 10, 2017 · Since the below method (using XOR) to reverse a string is not listed, I am attaching this method to reverse a string. The Algorithm is based on : 1.(A XOR B) XOR B = A . 2.(A XOR B) XOR A = B. Code snippet:

Nov 27, 2017 · Here is another way, doesn't seem super efficient but will explain why: String s = "blast"; IntStream.range(0, s.length()).

Can anyone tell me how to write a Java program to reverse a given sentence? For example, if the input is: "This is an interview question" The output must be: "question interview an is this"

The function takes the first character of a String - str.charAt(0) - puts it at the end and then calls itself - reverse() - on the remainder - str.substring(1), adding these two things together to get its result - reverse(str.substring(1)) + str.charAt(0)

Mar 14, 2010 · What is the most efficient way to reverse a string in Java? ... code this would be like: String reverse ...

May 14, 2009 · I have been messing around with recursion today. Often a programming technique that is not used enough. I set out to recursively reverse a string. Here's what I came up with: //A method to revers...

The loop for (int i = length - 1; i >= 0; i--) starts with the last letter, then it takes the second last, and so on, and appends every letter in a reverse order to the reverse string. In general in the loop you will do following: reverse = reverse + original.CharAt(4) => reverse='O' reverse = reverse + original.CharAt(3) => reverse='OL'

Jul 8, 2012 · Hi, as you are studying Java I recommend to check for Java classes source code too. It is a good source for learning purposes. Check file src.zip that is located in folder where you have Java installed. Unzip it and study the source code of standard java classes. –

Nov 7, 2014 · First, you could use Arrays.toString(Object[]) to print your String[].Then you can iterate half of the array and swap the String at the current position with it's corresponding pair (at the length - current index, remembering that Java arrays are zero indexed so the last position in an array is array.length - 1).

Mar 6, 2018 · I'm tying to learn Java. I need to make a method called reverse that gets a string and return a string (but in reverse order). Here is what i tried. Can you fix the code and explain what I'm doing ...