# Java Program to Split the array and add the first part to the end | Set 2

Given an array and split it from a specified position, and move the first part of array add to the end.Â
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Examples:Â
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```Input : arr[] = {12, 10, 5, 6, 52, 36}
k = 2
Output : arr[] = {5, 6, 52, 36, 12, 10}
Explanation : Split from index 2 and first
part {12, 10} add to the end .

Input : arr[] = {3, 1, 2}
k = 1
Output : arr[] = {1, 2, 3}
Explanation : Split from index 1 and first
part add to the end.```

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A O(n*k) solution is discussed here.Â
This problem can be solved in O(n) time using the reversal algorithm discussed below,Â
1. Reverse array from 0 to n – 1 (where n is size of the array).Â
2. Reverse array from 0 to n – k – 1.Â
3. Reverse array from n – k to n – 1.
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## Java

 `// Java program to Split the array and ``// add the first part to the end ``class` `Geeks ``{ ``     ` `/* Function to reverse arr[] from index start to end*/``static` `void` `rvereseArray(``int` `arr[], ``int` `start, ``int` `end) ``{ ``    ``while` `(start < end) { ``        ``int` `temp = arr[start]; ``        ``arr[start] = arr[end]; ``        ``arr[end] = temp; ``        ``start++; ``        ``end--; ``    ``} ``} `` ` `// Function to print an array ``static` `void` `printArray(``int` `arr[], ``int` `size) ``{ ``    ``for` `(``int` `i = ``0``; i < size; i++) ``        ``System.out.print(arr[i] +``" "``); ``} `` ` `/* Function to left rotate arr[] of size n by k */``static` `void` `splitArr(``int` `arr[], ``int` `k, ``int` `n) ``{ ``    ``rvereseArray(arr, ``0``, n - ``1``); ``    ``rvereseArray(arr, ``0``, n - k - ``1``); ``    ``rvereseArray(arr, n - k, n - ``1``); ``} `` ` `/* Driver program to test above functions */``public` `static` `void` `main(String args[]) ``{ ``    ``int` `arr[] = { ``12``, ``10``, ``5``, ``6``, ``52``, ``36` `}; ``    ``int` `n = arr.length; ``    ``int` `k = ``2``; `` ` `    ``// Function calling ``    ``splitArr(arr, k, n); ``    ``printArray(arr, n); `` ` `} `` ` `} `` ` `// This code is contributed by ankita_saini. `

Output:Â
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`5 6 52 36 12 10 `

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Please refer complete article on Split the array and add the first part to the end | Set 2 for more details!

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