JAVA The elements of an integer valued array can be initiali

JAVA!!!

The elements of an integer -valued array can be initialized so that a[i] == i in a recursive fashion as follows: An array of size 0 is already initialized ; Otherwise set the last element of the array to n-1 (where n is the number of elements in the array , for example, an array of size 3 will have its last element -- index 2-- set to 2; and initialize the portion of the array consisting of the first n-1 elements (i.e., the other elements of the array ) Write a void method named init that accepts an integer array , and the number of elements in the array and recursively initializes the array so that a[i] == i.

Solution

InitArray.java

import java.util.Arrays;

public class InitArray{

  
   public static void main(String[] args) {
       int a[] = new int[3];
       init(a, 3);
       System.out.println(Arrays.toString(a));
   }
   public static void init (int a[],int size){
       if(size==0){
           return;
       }
       else{
           a[size-1]=size-1;
           init(a,size-1);
       }
      
   }

}

Output:

[0, 1, 2]