Pendulum APC Array Chapter Q27 class 11

import java.io.*; class Pendulum_Array {     public static void main(String args[])throws IOException     {         BufferedReader br=new BufferedReader(new InputStreamReader(System.in));         System.out.print("nEnter number of elements: "); // Inputting the number of elements         int n = Integer.parseInt(br.readLine());           int A[]=new int[n]; //original array         int B[]=new int[n]; //array for storing the result                   /*Inputting the Array*/         for(int i=0; i<n; i++)         {             System.out.print("Enter Element "+(i+1)+": ");             A[i] = Integer.parseInt(br.readLine());         }                   /*Sorting the Inputted Array in Descending Order*/         int t=0;         for(int i=0; i<n-1; i++)         {             for(int j=i+1; j<n; j++)             {                 if(A[i]<A[j]) // Note: We have changed the sign to '<' here                 {                     t=A[i];                     A[i]=A[j];                     A[j]=t;                 }             }         }                   /*Printing the Sorted Array*/         System.out.println("\nThe Sorted Array Is");         for(int i=0; i<n; i++)         {             System.out.print(A[i]+"\t");         }                    int mid = (n-1)/2; //finding index of middle cell          int x = 1, lim = n-1-mid;          /*'x' is for accessing elements of array A[] and          'lim' is for the number of times we have to make this to-and-fro movement*/                     /* Pendulum Arrangement Starts Here */          B[mid]=A[0]; //putting the maximum element in the middle cell            for(int i=1; i<=lim; i++)          {              /* Note: Below we are first going to the left side then to the right,               just the opposite of the above code */                if((mid-i)>=0)                 B[mid-i]=A[x++];              if((mid+i)<n)                 B[mid+i]=A[x++];          }                    /*Printing the Result*/         System.out.println("\n\nThe Result Is");         for(int i=0; i<n; i++)         {             System.out.print(B[i]+"\t");         }     } }

Output:

Example 1:
Enter number of elements: 5
Enter Element 1: 1
Enter Element 2: 2
Enter Element 3: 3
Enter Element 4: 4
Enter Element 5: 5

The Sorted Array Is
5   4   3   2   1

The Result Is
2   4   5   3   1