Java Array The method rotateLeft() takes in a reference a to an integer array an

Question

Java Array

The method rotateLeft() takes in a reference a to an integer array and a positive integer n and it returns a new array whose contents is the contents of the input array rotated to the left n places. So each element a[i] of the input array should be placed at location b[i-n] of the returned array. If the index i-n is negative, then that index should "wrap" around to the end of the output array.

For example, if the input array is a = {1, 2, 3, 4, 5}, then rotateLeft(a, 2) should return an array containing {3, 4, 5, 1, 2}.

This method should not make any changes to the input array.

public static int[] rotateLeft(int[] a, int n)
{
int[] temp = new int[a.length];

Complete this method

Explanation / Answer

import java.lang.reflect.Array;

public class ArrayReverse {
public static void main(String[] args){
   int[] b={1, 2, 3, 4, 5,6};
   rotateLeft(b,3);
}
   public static int[] rotateLeft(int[] a,int n){
       int[] b=new int[10];
       int[] temp=new int[10];
       int counter=0;
       int inCounter=0;
       for(int j=0;j< n;j++){
           temp[j]=a[j];
       }
       for (int i = (n); i < a.length; i++) {
       b[counter++] = a[i];
       }
      
       for(int i=0;i<n;i++){
           b[counter++]=temp[i];
       }
      
       for(int i=0;i<a.length;i++){
           System.out.println(" "+b[i]);
       }
       return b;
      
   }
}

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