Left array Rotation

main.java

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int k = in.nextInt();
        int a[] = new int[n];
        for(int a_i=0; a_i < n; a_i++){
            a[a_i] = in.nextInt();
        }
        String resultString = Arrays.toString(leftRotation(a,k));
        resultString = resultString.replaceAll("(,)||( ,)", "").replaceAll("\\[", "").replaceAll("\\]", "");
        System.out.println(resultString);
    }
    
    public static int[] leftRotation(int[] arr, int d, int n){
        for(int y = 0; y < d; y++){
           for(int x = 0; x < arr.length - 1; x++){
                int tmp = arr[x];
                arr[x] = arr[x+1];
                arr[x+1] = tmp;
           }     
        }
        
        return arr;
    }
}