1) How to apply recursive call for this method. for the original, the method is : reverse(int[] a). so, after first step, you should create array b from a[2] --> a[n-1]. and using reverse (int [] b)`.

Feb 28, 2024 · Method-1: Java Program to Reverse an Array By Using Static Input and Recursion. Approach: Call a user defined method reverseArray() and pass the array ‘ A[] ’ with first index ‘ 0 ’ and last index ‘ A.length-1 ’ of the array as parameter.

Sep 25, 2024 · Given an array arr [], the task is to reverse the array. Reversing an array means rearranging the elements such that the first element becomes the last, the second element becomes second last and so on.

Nov 25, 2024 · Java provides several ways to reverse an array using built-in methods and manual approaches. The simplest way to reverse an array in Java is by using a loop to swap elements or by using the helper methods from the Collections and Arrays classes.

Mar 3, 2019 · Start from the array length -1 and decrease by 1 till the half of the array. You can get the starting position by simply using mod (%) . Use Array length -1 for index when initial calling. public int[] reverseIt(int index , int [] main_Arr){ if(index==(main_Arr.length)/2){ return main_Arr; int a =main_Arr[(main_Arr.length-1)%index];

Jul 1, 2014 · The trick with recursion is to try and think of the problem in terms of a base case and then a way to reduce everything to that base case. So, if you're trying to reverse a list then you can think of it like this: The reverse of a list of size 1 is that list.

Dec 22, 2013 · Reversing an array using Recursion is an example of Tail Recursion . We maintain two in-variants “i” and “j”. “i” holds starting element index and “j” holds ending element index of the array. As long as “i” is less than “j”, we swap two elements …

Oct 7, 2021 · In this java program tutorial, we will write a java program to reverse an array using recursion. Before that, you may go through the following topic in java. Array in java Recursion Explanation: In this java program we will take user input …

Let's write a java code to reverse an array using recursion. temp = arr[start]; . arr[start] = arr[end]; . arr[end] = temp; //Recursively call .

Nov 20, 2021 · We can also use recursion for reversing an array without using an auxiliary array. The logic remains the same as the above iterative implementation, but it takes space for the call stack. 3. Using Stack (Implicit and Explicit stack) Another plausible way of reversing an array is to use the stack data structure.